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Acre - Wikipedia

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class="vector-toc-numb">2</span> <span>US survey acres</span> </div> </a> <button aria-controls="toc-US_survey_acres-sublist" class="cdx-button cdx-button--weight-quiet cdx-button--icon-only vector-toc-toggle"> <span class="vector-icon mw-ui-icon-wikimedia-expand"></span> <span>Toggle US survey acres subsection</span> </button> <ul id="toc-US_survey_acres-sublist" class="vector-toc-list"> <li id="toc-Spanish_acre" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Spanish_acre"> <div class="vector-toc-text"> <span class="vector-toc-numb">2.1</span> <span>Spanish acre</span> </div> </a> <ul id="toc-Spanish_acre-sublist" class="vector-toc-list"> </ul> </li> </ul> </li> <li id="toc-Use" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Use"> <div class="vector-toc-text"> <span class="vector-toc-numb">3</span> <span>Use</span> </div> </a> <button aria-controls="toc-Use-sublist" class="cdx-button cdx-button--weight-quiet cdx-button--icon-only vector-toc-toggle"> <span class="vector-icon mw-ui-icon-wikimedia-expand"></span> <span>Toggle Use subsection</span> </button> <ul id="toc-Use-sublist" class="vector-toc-list"> <li id="toc-Republic_of_Ireland" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Republic_of_Ireland"> <div class="vector-toc-text"> <span class="vector-toc-numb">3.1</span> <span>Republic of Ireland</span> </div> </a> <ul id="toc-Republic_of_Ireland-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Indian_subcontinent" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Indian_subcontinent"> <div class="vector-toc-text"> <span class="vector-toc-numb">3.2</span> <span>Indian subcontinent</span> </div> </a> <ul id="toc-Indian_subcontinent-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-United_Kingdom" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#United_Kingdom"> <div class="vector-toc-text"> <span class="vector-toc-numb">3.3</span> <span>United Kingdom</span> </div> </a> <ul id="toc-United_Kingdom-sublist" class="vector-toc-list"> </ul> </li> </ul> </li> <li id="toc-Equivalence_to_other_units_of_area" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Equivalence_to_other_units_of_area"> <div class="vector-toc-text"> <span class="vector-toc-numb">4</span> <span>Equivalence to other units of area</span> </div> </a> <ul id="toc-Equivalence_to_other_units_of_area-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Historical_origin" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Historical_origin"> <div class="vector-toc-text"> <span class="vector-toc-numb">5</span> <span>Historical origin</span> </div> </a> <ul id="toc-Historical_origin-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Legacy_units" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Legacy_units"> <div class="vector-toc-text"> <span class="vector-toc-numb">6</span> <span>Legacy units</span> </div> </a> <ul id="toc-Legacy_units-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-See_also" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#See_also"> <div class="vector-toc-text"> <span class="vector-toc-numb">7</span> <span>See also</span> </div> </a> <ul id="toc-See_also-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Notes" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Notes"> <div class="vector-toc-text"> <span class="vector-toc-numb">8</span> <span>Notes</span> </div> </a> <ul id="toc-Notes-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-References" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#References"> <div class="vector-toc-text"> <span class="vector-toc-numb">9</span> <span>References</span> </div> </a> <ul id="toc-References-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-External_links" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#External_links"> <div class="vector-toc-text"> <span class="vector-toc-numb">10</span> <span>External links</span> </div> </a> <ul id="toc-External_links-sublist" class="vector-toc-list"> </ul> </li> </ul> </div> </div> </nav> </div> </div> <div class="mw-content-container"> <main id="content" class="mw-body"> <header class="mw-body-header vector-page-titlebar"> <nav aria-label="Contents" class="vector-toc-landmark"> <div id="vector-page-titlebar-toc" class="vector-dropdown vector-page-titlebar-toc vector-button-flush-left" > <input type="checkbox" id="vector-page-titlebar-toc-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-page-titlebar-toc" class="vector-dropdown-checkbox " aria-label="Toggle the table of contents" > <label id="vector-page-titlebar-toc-label" for="vector-page-titlebar-toc-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only " aria-hidden="true" ><span class="vector-icon mw-ui-icon-listBullet mw-ui-icon-wikimedia-listBullet"></span> <span class="vector-dropdown-label-text">Toggle the table of contents</span> </label> <div class="vector-dropdown-content"> <div id="vector-page-titlebar-toc-unpinned-container" class="vector-unpinned-container"> </div> </div> </div> </nav> <h1 id="firstHeading" class="firstHeading mw-first-heading"><span class="mw-page-title-main">Acre</span></h1> <div id="p-lang-btn" class="vector-dropdown mw-portlet mw-portlet-lang" > <input type="checkbox" id="p-lang-btn-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-p-lang-btn" class="vector-dropdown-checkbox mw-interlanguage-selector" aria-label="Go to an article in another language. Available in 84 languages" > <label id="p-lang-btn-label" for="p-lang-btn-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--action-progressive mw-portlet-lang-heading-84" aria-hidden="true" ><span class="vector-icon mw-ui-icon-language-progressive mw-ui-icon-wikimedia-language-progressive"></span> <span class="vector-dropdown-label-text">84 languages</span> </label> <div class="vector-dropdown-content"> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li class="interlanguage-link interwiki-af mw-list-item"><a href="https://af.wikipedia.org/wiki/Akker" title="Akker – Afrikaans" lang="af" hreflang="af" data-title="Akker" data-language-autonym="Afrikaans" data-language-local-name="Afrikaans" class="interlanguage-link-target"><span>Afrikaans</span></a></li><li class="interlanguage-link interwiki-ar mw-list-item"><a href="https://ar.wikipedia.org/wiki/%D8%A3%D9%83%D8%B1" title="أكر – Arabic" lang="ar" hreflang="ar" data-title="أكر" data-language-autonym="العربية" data-language-local-name="Arabic" class="interlanguage-link-target"><span>العربية</span></a></li><li class="interlanguage-link interwiki-ast mw-list-item"><a href="https://ast.wikipedia.org/wiki/Acre_(unid%C3%A1_de_superficie)" title="Acre (unidá de superficie) – Asturian" lang="ast" hreflang="ast" data-title="Acre (unidá de superficie)" data-language-autonym="Asturianu" data-language-local-name="Asturian" class="interlanguage-link-target"><span>Asturianu</span></a></li><li class="interlanguage-link interwiki-az mw-list-item"><a href="https://az.wikipedia.org/wiki/Akr" title="Akr – Azerbaijani" lang="az" hreflang="az" data-title="Akr" data-language-autonym="Azərbaycanca" data-language-local-name="Azerbaijani" class="interlanguage-link-target"><span>Azərbaycanca</span></a></li><li class="interlanguage-link interwiki-bn mw-list-item"><a href="https://bn.wikipedia.org/wiki/%E0%A6%8F%E0%A6%95%E0%A6%B0" title="একর – Bangla" lang="bn" hreflang="bn" data-title="একর" data-language-autonym="বাংলা" data-language-local-name="Bangla" class="interlanguage-link-target"><span>বাংলা</span></a></li><li class="interlanguage-link interwiki-be mw-list-item"><a href="https://be.wikipedia.org/wiki/%D0%90%D0%BA%D1%80" title="Акр – Belarusian" lang="be" hreflang="be" data-title="Акр" data-language-autonym="Беларуская" data-language-local-name="Belarusian" class="interlanguage-link-target"><span>Беларуская</span></a></li><li class="interlanguage-link interwiki-be-x-old mw-list-item"><a href="https://be-tarask.wikipedia.org/wiki/%D0%90%D0%BA%D1%80" title="Акр – Belarusian (Taraškievica orthography)" lang="be-tarask" hreflang="be-tarask" data-title="Акр" data-language-autonym="Беларуская (тарашкевіца)" data-language-local-name="Belarusian (Taraškievica orthography)" class="interlanguage-link-target"><span>Беларуская (тарашкевіца)</span></a></li><li class="interlanguage-link interwiki-bg mw-list-item"><a href="https://bg.wikipedia.org/wiki/%D0%90%D0%BA%D1%8A%D1%80" title="Акър – Bulgarian" lang="bg" hreflang="bg" data-title="Акър" data-language-autonym="Български" data-language-local-name="Bulgarian" class="interlanguage-link-target"><span>Български</span></a></li><li class="interlanguage-link interwiki-bs mw-list-item"><a href="https://bs.wikipedia.org/wiki/Aker" title="Aker – Bosnian" lang="bs" hreflang="bs" data-title="Aker" data-language-autonym="Bosanski" data-language-local-name="Bosnian" class="interlanguage-link-target"><span>Bosanski</span></a></li><li class="interlanguage-link interwiki-br mw-list-item"><a href="https://br.wikipedia.org/wiki/Erv_(gorread)" title="Erv (gorread) – Breton" lang="br" hreflang="br" data-title="Erv (gorread)" data-language-autonym="Brezhoneg" data-language-local-name="Breton" class="interlanguage-link-target"><span>Brezhoneg</span></a></li><li class="interlanguage-link interwiki-ca mw-list-item"><a href="https://ca.wikipedia.org/wiki/Acre_(unitat_de_superf%C3%ADcie)" title="Acre (unitat de superfície) – Catalan" lang="ca" hreflang="ca" data-title="Acre (unitat de superfície)" data-language-autonym="Català" data-language-local-name="Catalan" class="interlanguage-link-target"><span>Català</span></a></li><li class="interlanguage-link interwiki-cs mw-list-item"><a href="https://cs.wikipedia.org/wiki/Akr" title="Akr – Czech" lang="cs" hreflang="cs" data-title="Akr" data-language-autonym="Čeština" data-language-local-name="Czech" class="interlanguage-link-target"><span>Čeština</span></a></li><li class="interlanguage-link interwiki-cy mw-list-item"><a href="https://cy.wikipedia.org/wiki/Erw" title="Erw – Welsh" lang="cy" hreflang="cy" data-title="Erw" data-language-autonym="Cymraeg" data-language-local-name="Welsh" class="interlanguage-link-target"><span>Cymraeg</span></a></li><li class="interlanguage-link interwiki-da mw-list-item"><a href="https://da.wikipedia.org/wiki/Acre_(fladem%C3%A5l)" title="Acre (flademål) – Danish" lang="da" hreflang="da" data-title="Acre (flademål)" data-language-autonym="Dansk" data-language-local-name="Danish" class="interlanguage-link-target"><span>Dansk</span></a></li><li class="interlanguage-link interwiki-de mw-list-item"><a href="https://de.wikipedia.org/wiki/Acre" title="Acre – German" lang="de" hreflang="de" data-title="Acre" data-language-autonym="Deutsch" data-language-local-name="German" class="interlanguage-link-target"><span>Deutsch</span></a></li><li class="interlanguage-link interwiki-et mw-list-item"><a href="https://et.wikipedia.org/wiki/Aaker" title="Aaker – Estonian" lang="et" hreflang="et" data-title="Aaker" data-language-autonym="Eesti" data-language-local-name="Estonian" class="interlanguage-link-target"><span>Eesti</span></a></li><li class="interlanguage-link interwiki-el mw-list-item"><a href="https://el.wikipedia.org/wiki/%CE%88%CE%B9%CE%BA%CF%81" title="Έικρ – Greek" lang="el" hreflang="el" data-title="Έικρ" data-language-autonym="Ελληνικά" data-language-local-name="Greek" class="interlanguage-link-target"><span>Ελληνικά</span></a></li><li class="interlanguage-link interwiki-es mw-list-item"><a href="https://es.wikipedia.org/wiki/Acre_(unidad_de_superficie)" title="Acre (unidad de superficie) – Spanish" lang="es" hreflang="es" data-title="Acre (unidad de superficie)" data-language-autonym="Español" data-language-local-name="Spanish" class="interlanguage-link-target"><span>Español</span></a></li><li class="interlanguage-link interwiki-eo mw-list-item"><a href="https://eo.wikipedia.org/wiki/Akreo_(mezurunuo)" title="Akreo (mezurunuo) – Esperanto" lang="eo" hreflang="eo" data-title="Akreo (mezurunuo)" data-language-autonym="Esperanto" data-language-local-name="Esperanto" class="interlanguage-link-target"><span>Esperanto</span></a></li><li class="interlanguage-link interwiki-eu mw-list-item"><a href="https://eu.wikipedia.org/wiki/Akre_(neurria)" title="Akre (neurria) – Basque" lang="eu" hreflang="eu" data-title="Akre (neurria)" data-language-autonym="Euskara" data-language-local-name="Basque" class="interlanguage-link-target"><span>Euskara</span></a></li><li class="interlanguage-link interwiki-fa mw-list-item"><a href="https://fa.wikipedia.org/wiki/%D8%AC%D8%B1%DB%8C%D8%A8_%D9%81%D8%B1%D9%86%DA%AF%DB%8C" title="جریب فرنگی – Persian" lang="fa" hreflang="fa" data-title="جریب فرنگی" data-language-autonym="فارسی" data-language-local-name="Persian" class="interlanguage-link-target"><span>فارسی</span></a></li><li class="interlanguage-link interwiki-fr mw-list-item"><a href="https://fr.wikipedia.org/wiki/Acre_(unit%C3%A9)" title="Acre (unité) – French" lang="fr" hreflang="fr" data-title="Acre (unité)" data-language-autonym="Français" data-language-local-name="French" class="interlanguage-link-target"><span>Français</span></a></li><li class="interlanguage-link interwiki-fy mw-list-item"><a href="https://fy.wikipedia.org/wiki/Acre_(oerflaktemjitte)" title="Acre (oerflaktemjitte) – Western Frisian" lang="fy" hreflang="fy" data-title="Acre (oerflaktemjitte)" data-language-autonym="Frysk" data-language-local-name="Western Frisian" class="interlanguage-link-target"><span>Frysk</span></a></li><li class="interlanguage-link interwiki-gd mw-list-item"><a href="https://gd.wikipedia.org/wiki/Acair_(talamh)" title="Acair (talamh) – Scottish Gaelic" lang="gd" hreflang="gd" data-title="Acair (talamh)" data-language-autonym="Gàidhlig" data-language-local-name="Scottish Gaelic" class="interlanguage-link-target"><span>Gàidhlig</span></a></li><li class="interlanguage-link interwiki-gl mw-list-item"><a href="https://gl.wikipedia.org/wiki/Acre_(unidade_de_superficie)" title="Acre (unidade de superficie) – Galician" lang="gl" hreflang="gl" data-title="Acre (unidade de superficie)" data-language-autonym="Galego" data-language-local-name="Galician" class="interlanguage-link-target"><span>Galego</span></a></li><li class="interlanguage-link interwiki-ko mw-list-item"><a href="https://ko.wikipedia.org/wiki/%EC%97%90%EC%9D%B4%EC%BB%A4" title="에이커 – Korean" lang="ko" hreflang="ko" data-title="에이커" data-language-autonym="한국어" data-language-local-name="Korean" class="interlanguage-link-target"><span>한국어</span></a></li><li class="interlanguage-link interwiki-hy mw-list-item"><a href="https://hy.wikipedia.org/wiki/%D4%B1%D5%AF%D6%80" title="Ակր – Armenian" lang="hy" hreflang="hy" data-title="Ակր" data-language-autonym="Հայերեն" data-language-local-name="Armenian" class="interlanguage-link-target"><span>Հայերեն</span></a></li><li class="interlanguage-link interwiki-hi mw-list-item"><a href="https://hi.wikipedia.org/wiki/%E0%A4%8F%E0%A4%95%E0%A4%A1%E0%A4%BC" title="एकड़ – Hindi" lang="hi" hreflang="hi" data-title="एकड़" data-language-autonym="हिन्दी" data-language-local-name="Hindi" class="interlanguage-link-target"><span>हिन्दी</span></a></li><li class="interlanguage-link interwiki-hr mw-list-item"><a href="https://hr.wikipedia.org/wiki/Aker" title="Aker – Croatian" lang="hr" hreflang="hr" data-title="Aker" data-language-autonym="Hrvatski" data-language-local-name="Croatian" class="interlanguage-link-target"><span>Hrvatski</span></a></li><li class="interlanguage-link interwiki-ig mw-list-item"><a href="https://ig.wikipedia.org/wiki/Acre" title="Acre – Igbo" lang="ig" hreflang="ig" data-title="Acre" data-language-autonym="Igbo" data-language-local-name="Igbo" class="interlanguage-link-target"><span>Igbo</span></a></li><li class="interlanguage-link interwiki-bpy mw-list-item"><a href="https://bpy.wikipedia.org/wiki/%E0%A6%8F%E0%A6%95%E0%A6%B0" title="একর – Bishnupriya" lang="bpy" hreflang="bpy" data-title="একর" data-language-autonym="বিষ্ণুপ্রিয়া মণিপুরী" data-language-local-name="Bishnupriya" class="interlanguage-link-target"><span>বিষ্ণুপ্রিয়া মণিপুরী</span></a></li><li class="interlanguage-link interwiki-id mw-list-item"><a href="https://id.wikipedia.org/wiki/Ekar" title="Ekar – Indonesian" lang="id" hreflang="id" data-title="Ekar" data-language-autonym="Bahasa Indonesia" data-language-local-name="Indonesian" class="interlanguage-link-target"><span>Bahasa Indonesia</span></a></li><li class="interlanguage-link interwiki-ia mw-list-item"><a href="https://ia.wikipedia.org/wiki/Acre" title="Acre – Interlingua" lang="ia" hreflang="ia" data-title="Acre" data-language-autonym="Interlingua" data-language-local-name="Interlingua" class="interlanguage-link-target"><span>Interlingua</span></a></li><li class="interlanguage-link interwiki-is mw-list-item"><a href="https://is.wikipedia.org/wiki/Ekra_(m%C3%A6lieining)" title="Ekra (mælieining) – Icelandic" lang="is" hreflang="is" data-title="Ekra (mælieining)" data-language-autonym="Íslenska" data-language-local-name="Icelandic" class="interlanguage-link-target"><span>Íslenska</span></a></li><li class="interlanguage-link interwiki-it mw-list-item"><a href="https://it.wikipedia.org/wiki/Acro" title="Acro – Italian" lang="it" hreflang="it" data-title="Acro" data-language-autonym="Italiano" data-language-local-name="Italian" class="interlanguage-link-target"><span>Italiano</span></a></li><li class="interlanguage-link interwiki-he mw-list-item"><a href="https://he.wikipedia.org/wiki/%D7%90%D7%A7%D7%A8" title="אקר – Hebrew" lang="he" hreflang="he" data-title="אקר" data-language-autonym="עברית" data-language-local-name="Hebrew" class="interlanguage-link-target"><span>עברית</span></a></li><li class="interlanguage-link interwiki-kn mw-list-item"><a href="https://kn.wikipedia.org/wiki/%E0%B2%8E%E0%B2%95%E0%B2%B0%E0%B3%86" title="ಎಕರೆ – Kannada" lang="kn" hreflang="kn" data-title="ಎಕರೆ" data-language-autonym="ಕನ್ನಡ" data-language-local-name="Kannada" class="interlanguage-link-target"><span>ಕನ್ನಡ</span></a></li><li class="interlanguage-link interwiki-ka mw-list-item"><a href="https://ka.wikipedia.org/wiki/%E1%83%90%E1%83%99%E1%83%A0%E1%83%98_(%E1%83%A1%E1%83%90%E1%83%96%E1%83%9D%E1%83%9B%E1%83%98)" title="აკრი (საზომი) – Georgian" lang="ka" hreflang="ka" data-title="აკრი (საზომი)" data-language-autonym="ქართული" data-language-local-name="Georgian" class="interlanguage-link-target"><span>ქართული</span></a></li><li class="interlanguage-link interwiki-kk mw-list-item"><a href="https://kk.wikipedia.org/wiki/%D0%90%D0%BA%D1%80" title="Акр – Kazakh" lang="kk" hreflang="kk" data-title="Акр" data-language-autonym="Қазақша" data-language-local-name="Kazakh" class="interlanguage-link-target"><span>Қазақша</span></a></li><li class="interlanguage-link interwiki-sw mw-list-item"><a href="https://sw.wikipedia.org/wiki/Ekari" title="Ekari – Swahili" lang="sw" hreflang="sw" data-title="Ekari" data-language-autonym="Kiswahili" data-language-local-name="Swahili" class="interlanguage-link-target"><span>Kiswahili</span></a></li><li class="interlanguage-link interwiki-la mw-list-item"><a href="https://la.wikipedia.org/wiki/Acra_(mensura)" title="Acra (mensura) – Latin" lang="la" hreflang="la" data-title="Acra (mensura)" data-language-autonym="Latina" data-language-local-name="Latin" class="interlanguage-link-target"><span>Latina</span></a></li><li class="interlanguage-link interwiki-lv mw-list-item"><a href="https://lv.wikipedia.org/wiki/Akrs" title="Akrs – Latvian" lang="lv" hreflang="lv" data-title="Akrs" data-language-autonym="Latviešu" data-language-local-name="Latvian" class="interlanguage-link-target"><span>Latviešu</span></a></li><li class="interlanguage-link interwiki-lt mw-list-item"><a href="https://lt.wikipedia.org/wiki/Akras" title="Akras – Lithuanian" lang="lt" hreflang="lt" data-title="Akras" data-language-autonym="Lietuvių" data-language-local-name="Lithuanian" class="interlanguage-link-target"><span>Lietuvių</span></a></li><li class="interlanguage-link interwiki-mk mw-list-item"><a href="https://mk.wikipedia.org/wiki/%D0%90%D0%BA%D1%80" title="Акр – Macedonian" lang="mk" hreflang="mk" data-title="Акр" data-language-autonym="Македонски" data-language-local-name="Macedonian" class="interlanguage-link-target"><span>Македонски</span></a></li><li class="interlanguage-link interwiki-ml mw-list-item"><a href="https://ml.wikipedia.org/wiki/%E0%B4%8F%E0%B4%95%E0%B5%8D%E0%B4%95%E0%B5%BC" title="ഏക്കർ – Malayalam" lang="ml" hreflang="ml" data-title="ഏക്കർ" data-language-autonym="മലയാളം" data-language-local-name="Malayalam" class="interlanguage-link-target"><span>മലയാളം</span></a></li><li class="interlanguage-link interwiki-mr mw-list-item"><a href="https://mr.wikipedia.org/wiki/%E0%A4%8F%E0%A4%95%E0%A4%B0" title="एकर – Marathi" lang="mr" hreflang="mr" data-title="एकर" data-language-autonym="मराठी" data-language-local-name="Marathi" class="interlanguage-link-target"><span>मराठी</span></a></li><li class="interlanguage-link interwiki-ms mw-list-item"><a href="https://ms.wikipedia.org/wiki/Ekar" title="Ekar – Malay" lang="ms" hreflang="ms" data-title="Ekar" data-language-autonym="Bahasa Melayu" data-language-local-name="Malay" class="interlanguage-link-target"><span>Bahasa Melayu</span></a></li><li class="interlanguage-link interwiki-my mw-list-item"><a href="https://my.wikipedia.org/wiki/%E1%80%A7%E1%80%80" title="ဧက – Burmese" lang="my" hreflang="my" data-title="ဧက" data-language-autonym="မြန်မာဘာသာ" data-language-local-name="Burmese" class="interlanguage-link-target"><span>မြန်မာဘာသာ</span></a></li><li class="interlanguage-link interwiki-nl mw-list-item"><a href="https://nl.wikipedia.org/wiki/Acre_(oppervlaktemaat)" title="Acre (oppervlaktemaat) – Dutch" lang="nl" hreflang="nl" data-title="Acre (oppervlaktemaat)" data-language-autonym="Nederlands" data-language-local-name="Dutch" class="interlanguage-link-target"><span>Nederlands</span></a></li><li class="interlanguage-link interwiki-ja mw-list-item"><a href="https://ja.wikipedia.org/wiki/%E3%82%A8%E3%83%BC%E3%82%AB%E3%83%BC" title="エーカー – Japanese" lang="ja" hreflang="ja" data-title="エーカー" data-language-autonym="日本語" data-language-local-name="Japanese" class="interlanguage-link-target"><span>日本語</span></a></li><li class="interlanguage-link interwiki-no mw-list-item"><a href="https://no.wikipedia.org/wiki/Acre_(m%C3%A5leenhet)" title="Acre (måleenhet) – Norwegian Bokmål" lang="nb" hreflang="nb" data-title="Acre (måleenhet)" data-language-autonym="Norsk bokmål" data-language-local-name="Norwegian Bokmål" class="interlanguage-link-target"><span>Norsk bokmål</span></a></li><li class="interlanguage-link interwiki-nn mw-list-item"><a href="https://nn.wikipedia.org/wiki/Acre" title="Acre – Norwegian Nynorsk" lang="nn" hreflang="nn" data-title="Acre" data-language-autonym="Norsk nynorsk" data-language-local-name="Norwegian Nynorsk" class="interlanguage-link-target"><span>Norsk nynorsk</span></a></li><li class="interlanguage-link interwiki-oc badge-Q70893996 mw-list-item" title=""><a href="https://oc.wikipedia.org/wiki/Acre" title="Acre – Occitan" lang="oc" hreflang="oc" data-title="Acre" data-language-autonym="Occitan" data-language-local-name="Occitan" class="interlanguage-link-target"><span>Occitan</span></a></li><li class="interlanguage-link interwiki-uz mw-list-item"><a href="https://uz.wikipedia.org/wiki/Akr" title="Akr – Uzbek" lang="uz" hreflang="uz" data-title="Akr" data-language-autonym="Oʻzbekcha / ўзбекча" data-language-local-name="Uzbek" class="interlanguage-link-target"><span>Oʻzbekcha / ўзбекча</span></a></li><li class="interlanguage-link interwiki-pa mw-list-item"><a href="https://pa.wikipedia.org/wiki/%E0%A8%8F%E0%A8%95%E0%A9%9C" title="ਏਕੜ – Punjabi" lang="pa" hreflang="pa" data-title="ਏਕੜ" data-language-autonym="ਪੰਜਾਬੀ" data-language-local-name="Punjabi" class="interlanguage-link-target"><span>ਪੰਜਾਬੀ</span></a></li><li class="interlanguage-link interwiki-pnb mw-list-item"><a href="https://pnb.wikipedia.org/wiki/%D8%A7%DB%8C%DA%A9%DA%91" title="ایکڑ – Western Punjabi" lang="pnb" hreflang="pnb" data-title="ایکڑ" data-language-autonym="پنجابی" data-language-local-name="Western Punjabi" class="interlanguage-link-target"><span>پنجابی</span></a></li><li class="interlanguage-link interwiki-pl mw-list-item"><a href="https://pl.wikipedia.org/wiki/Akr" title="Akr – Polish" lang="pl" hreflang="pl" data-title="Akr" data-language-autonym="Polski" data-language-local-name="Polish" class="interlanguage-link-target"><span>Polski</span></a></li><li class="interlanguage-link interwiki-pt mw-list-item"><a href="https://pt.wikipedia.org/wiki/Acre_(unidade)" title="Acre (unidade) – Portuguese" lang="pt" hreflang="pt" data-title="Acre (unidade)" data-language-autonym="Português" data-language-local-name="Portuguese" class="interlanguage-link-target"><span>Português</span></a></li><li class="interlanguage-link interwiki-ro mw-list-item"><a href="https://ro.wikipedia.org/wiki/Acru" title="Acru – Romanian" lang="ro" hreflang="ro" data-title="Acru" data-language-autonym="Română" data-language-local-name="Romanian" class="interlanguage-link-target"><span>Română</span></a></li><li class="interlanguage-link interwiki-ru mw-list-item"><a href="https://ru.wikipedia.org/wiki/%D0%90%D0%BA%D1%80" title="Акр – Russian" lang="ru" hreflang="ru" data-title="Акр" data-language-autonym="Русский" data-language-local-name="Russian" class="interlanguage-link-target"><span>Русский</span></a></li><li class="interlanguage-link interwiki-sco mw-list-item"><a href="https://sco.wikipedia.org/wiki/Acre" title="Acre – Scots" lang="sco" hreflang="sco" data-title="Acre" data-language-autonym="Scots" data-language-local-name="Scots" class="interlanguage-link-target"><span>Scots</span></a></li><li class="interlanguage-link interwiki-simple mw-list-item"><a href="https://simple.wikipedia.org/wiki/Acre" title="Acre – Simple English" lang="en-simple" hreflang="en-simple" data-title="Acre" data-language-autonym="Simple English" data-language-local-name="Simple English" class="interlanguage-link-target"><span>Simple English</span></a></li><li class="interlanguage-link interwiki-sd mw-list-item"><a href="https://sd.wikipedia.org/wiki/%D8%A7%D9%8A%DA%AA%DA%99" title="ايڪڙ – Sindhi" lang="sd" hreflang="sd" data-title="ايڪڙ" data-language-autonym="سنڌي" data-language-local-name="Sindhi" class="interlanguage-link-target"><span>سنڌي</span></a></li><li class="interlanguage-link interwiki-sk mw-list-item"><a href="https://sk.wikipedia.org/wiki/Aker_(jednotka)" title="Aker (jednotka) – Slovak" lang="sk" hreflang="sk" data-title="Aker (jednotka)" data-language-autonym="Slovenčina" data-language-local-name="Slovak" class="interlanguage-link-target"><span>Slovenčina</span></a></li><li class="interlanguage-link interwiki-sl mw-list-item"><a href="https://sl.wikipedia.org/wiki/Aker" title="Aker – Slovenian" lang="sl" hreflang="sl" data-title="Aker" data-language-autonym="Slovenščina" data-language-local-name="Slovenian" class="interlanguage-link-target"><span>Slovenščina</span></a></li><li class="interlanguage-link interwiki-sr mw-list-item"><a href="https://sr.wikipedia.org/wiki/Akr" title="Akr – Serbian" lang="sr" hreflang="sr" data-title="Akr" data-language-autonym="Српски / srpski" data-language-local-name="Serbian" class="interlanguage-link-target"><span>Српски / srpski</span></a></li><li class="interlanguage-link interwiki-sh mw-list-item"><a href="https://sh.wikipedia.org/wiki/Aker" title="Aker – Serbo-Croatian" lang="sh" hreflang="sh" data-title="Aker" data-language-autonym="Srpskohrvatski / српскохрватски" data-language-local-name="Serbo-Croatian" class="interlanguage-link-target"><span>Srpskohrvatski / српскохрватски</span></a></li><li class="interlanguage-link interwiki-fi mw-list-item"><a href="https://fi.wikipedia.org/wiki/Eekkeri" title="Eekkeri – Finnish" lang="fi" hreflang="fi" data-title="Eekkeri" data-language-autonym="Suomi" data-language-local-name="Finnish" class="interlanguage-link-target"><span>Suomi</span></a></li><li class="interlanguage-link interwiki-sv mw-list-item"><a href="https://sv.wikipedia.org/wiki/Engelska_tunnland" title="Engelska tunnland – Swedish" lang="sv" hreflang="sv" data-title="Engelska tunnland" data-language-autonym="Svenska" data-language-local-name="Swedish" class="interlanguage-link-target"><span>Svenska</span></a></li><li class="interlanguage-link interwiki-tl mw-list-item"><a href="https://tl.wikipedia.org/wiki/Akre_(sukat)" title="Akre (sukat) – Tagalog" lang="tl" hreflang="tl" data-title="Akre (sukat)" data-language-autonym="Tagalog" data-language-local-name="Tagalog" class="interlanguage-link-target"><span>Tagalog</span></a></li><li class="interlanguage-link interwiki-ta mw-list-item"><a href="https://ta.wikipedia.org/wiki/%E0%AE%8F%E0%AE%95%E0%AF%8D%E0%AE%95%E0%AE%B0%E0%AF%8D" title="ஏக்கர் – Tamil" lang="ta" hreflang="ta" data-title="ஏக்கர்" data-language-autonym="தமிழ்" data-language-local-name="Tamil" class="interlanguage-link-target"><span>தமிழ்</span></a></li><li class="interlanguage-link interwiki-tt mw-list-item"><a href="https://tt.wikipedia.org/wiki/%D0%90%D0%BA%D1%80" title="Акр – Tatar" lang="tt" hreflang="tt" data-title="Акр" data-language-autonym="Татарча / tatarça" data-language-local-name="Tatar" class="interlanguage-link-target"><span>Татарча / tatarça</span></a></li><li class="interlanguage-link interwiki-te mw-list-item"><a href="https://te.wikipedia.org/wiki/%E0%B0%8E%E0%B0%95%E0%B0%B0%E0%B0%82" title="ఎకరం – Telugu" lang="te" hreflang="te" data-title="ఎకరం" data-language-autonym="తెలుగు" data-language-local-name="Telugu" class="interlanguage-link-target"><span>తెలుగు</span></a></li><li class="interlanguage-link interwiki-th mw-list-item"><a href="https://th.wikipedia.org/wiki/%E0%B9%80%E0%B8%AD%E0%B9%80%E0%B8%84%E0%B8%AD%E0%B8%A3%E0%B9%8C" title="เอเคอร์ – Thai" lang="th" hreflang="th" data-title="เอเคอร์" data-language-autonym="ไทย" data-language-local-name="Thai" class="interlanguage-link-target"><span>ไทย</span></a></li><li class="interlanguage-link interwiki-tr mw-list-item"><a href="https://tr.wikipedia.org/wiki/Akre" title="Akre – Turkish" lang="tr" hreflang="tr" data-title="Akre" data-language-autonym="Türkçe" data-language-local-name="Turkish" class="interlanguage-link-target"><span>Türkçe</span></a></li><li class="interlanguage-link interwiki-kcg mw-list-item"><a href="https://kcg.wikipedia.org/wiki/A%CC%B1la%CC%B1uu" title="A̱la̱uu – Tyap" lang="kcg" hreflang="kcg" data-title="A̱la̱uu" data-language-autonym="Tyap" data-language-local-name="Tyap" class="interlanguage-link-target"><span>Tyap</span></a></li><li class="interlanguage-link interwiki-uk mw-list-item"><a href="https://uk.wikipedia.org/wiki/%D0%90%D0%BA%D1%80" title="Акр – Ukrainian" lang="uk" hreflang="uk" data-title="Акр" data-language-autonym="Українська" data-language-local-name="Ukrainian" class="interlanguage-link-target"><span>Українська</span></a></li><li class="interlanguage-link interwiki-ur mw-list-item"><a href="https://ur.wikipedia.org/wiki/%D8%A7%DB%8C%DA%A9%DA%91" title="ایکڑ – Urdu" lang="ur" hreflang="ur" data-title="ایکڑ" data-language-autonym="اردو" data-language-local-name="Urdu" class="interlanguage-link-target"><span>اردو</span></a></li><li class="interlanguage-link interwiki-vi mw-list-item"><a href="https://vi.wikipedia.org/wiki/M%E1%BA%ABu_Anh" title="Mẫu Anh – Vietnamese" lang="vi" hreflang="vi" data-title="Mẫu Anh" data-language-autonym="Tiếng Việt" data-language-local-name="Vietnamese" class="interlanguage-link-target"><span>Tiếng Việt</span></a></li><li class="interlanguage-link interwiki-fiu-vro mw-list-item"><a href="https://fiu-vro.wikipedia.org/wiki/Aakri" title="Aakri – Võro" lang="vro" hreflang="vro" data-title="Aakri" data-language-autonym="Võro" data-language-local-name="Võro" class="interlanguage-link-target"><span>Võro</span></a></li><li class="interlanguage-link interwiki-war mw-list-item"><a href="https://war.wikipedia.org/wiki/Acre" title="Acre – Waray" lang="war" hreflang="war" data-title="Acre" data-language-autonym="Winaray" data-language-local-name="Waray" class="interlanguage-link-target"><span>Winaray</span></a></li><li class="interlanguage-link interwiki-wuu mw-list-item"><a href="https://wuu.wikipedia.org/wiki/%E8%8B%B1%E4%BA%A9" title="英亩 – Wu" lang="wuu" hreflang="wuu" data-title="英亩" data-language-autonym="吴语" data-language-local-name="Wu" class="interlanguage-link-target"><span>吴语</span></a></li><li class="interlanguage-link interwiki-zh-yue mw-list-item"><a href="https://zh-yue.wikipedia.org/wiki/%E8%8B%B1%E7%95%9D" title="英畝 – Cantonese" lang="yue" hreflang="yue" data-title="英畝" data-language-autonym="粵語" data-language-local-name="Cantonese" class="interlanguage-link-target"><span>粵語</span></a></li><li class="interlanguage-link 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id="siteSub" class="noprint">From Wikipedia, the free encyclopedia</div> </div> <div id="contentSub"><div id="mw-content-subtitle"></div></div> <div id="mw-content-text" class="mw-body-content"><div class="mw-content-ltr mw-parser-output" lang="en" dir="ltr"><div class="shortdescription nomobile noexcerpt noprint searchaux" style="display:none">Unit of area</div> <style data-mw-deduplicate="TemplateStyles:r1236090951">.mw-parser-output .hatnote{font-style:italic}.mw-parser-output div.hatnote{padding-left:1.6em;margin-bottom:0.5em}.mw-parser-output .hatnote i{font-style:normal}.mw-parser-output .hatnote+link+.hatnote{margin-top:-0.5em}@media print{body.ns-0 .mw-parser-output .hatnote{display:none!important}}</style><div role="note" class="hatnote navigation-not-searchable">This article is about the unit of area measure. For other uses, see <a href="/wiki/Acre_(disambiguation)" class="mw-disambig" title="Acre (disambiguation)">Acre (disambiguation)</a>.</div> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1236090951"><div role="note" class="hatnote navigation-not-searchable">"Acres" redirects here. For the surname, see <a href="/wiki/Acres_(surname)" title="Acres (surname)">Acres (surname)</a>.</div> <p class="mw-empty-elt"> </p> <style data-mw-deduplicate="TemplateStyles:r1257001546">.mw-parser-output .infobox-subbox{padding:0;border:none;margin:-3px;width:auto;min-width:100%;font-size:100%;clear:none;float:none;background-color:transparent}.mw-parser-output .infobox-3cols-child{margin:auto}.mw-parser-output .infobox .navbar{font-size:100%}@media screen{html.skin-theme-clientpref-night .mw-parser-output .infobox-full-data:not(.notheme)>div:not(.notheme)[style]{background:#1f1f23!important;color:#f8f9fa}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .infobox-full-data:not(.notheme) div:not(.notheme){background:#1f1f23!important;color:#f8f9fa}}@media(min-width:640px){body.skin--responsive .mw-parser-output .infobox-table{display:table!important}body.skin--responsive .mw-parser-output .infobox-table>caption{display:table-caption!important}body.skin--responsive .mw-parser-output .infobox-table>tbody{display:table-row-group}body.skin--responsive .mw-parser-output .infobox-table tr{display:table-row!important}body.skin--responsive .mw-parser-output .infobox-table th,body.skin--responsive .mw-parser-output .infobox-table td{padding-left:inherit;padding-right:inherit}}</style><table class="infobox ib-unit"><tbody><tr><th colspan="2" class="infobox-above">acre</th></tr><tr><td colspan="2" class="infobox-image notheme" style="background-color: #f8f9fa;"><span class="mw-default-size" typeof="mw:File/Frameless"><a href="/wiki/File:Comparison_land_area_units.svg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/7/7f/Comparison_land_area_units.svg/220px-Comparison_land_area_units.svg.png" decoding="async" width="220" height="235" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/7/7f/Comparison_land_area_units.svg/330px-Comparison_land_area_units.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/7/7f/Comparison_land_area_units.svg/440px-Comparison_land_area_units.svg.png 2x" data-file-width="512" data-file-height="546" /></a></span><div class="infobox-caption">One <a href="/wiki/Hectare" title="Hectare">hectare</a>, with an acre represented as the lower white-and-yellow checkered region</div></td></tr><tr><th colspan="2" class="infobox-header">General information</th></tr><tr><th scope="row" class="infobox-label"><a href="/wiki/System_of_units_of_measurement" title="System of units of measurement">Unit system</a></th><td class="infobox-data"><a href="/wiki/US_customary_units" class="mw-redirect" title="US customary units">US customary units</a>, <a href="/wiki/Imperial_units" title="Imperial units">Imperial units</a></td></tr><tr><th scope="row" class="infobox-label">Unit&#160;of</th><td class="infobox-data">area</td></tr><tr><th scope="row" class="infobox-label">Symbol</th><td class="infobox-data">ac,&#8194;acre</td></tr><tr><th colspan="2" class="infobox-header">Conversions </th></tr><tr class="nowrap"><td>1&#160;ac <i>in ...</i></td><td><i>... is equal to ...</i></td></tr><tr style="display:none"><th colspan="2"> </th></tr><tr><th scope="row" class="infobox-label"><span class="nowrap">&#160;&#160;&#160;</span>SI units</th><td class="infobox-data"><span class="nowrap">&#160;&#160;&#160;</span>= 4,046.8564224&#160;m<sup>2</sup></td></tr><tr><th scope="row" class="infobox-label"><span class="nowrap">&#160;&#160;&#160;</span>US customary, Imperial</th><td class="infobox-data"><span class="nowrap">&#160;&#160;&#160;</span>≡ 4,840&#160;sq&#160;yd<br />≡ <style data-mw-deduplicate="TemplateStyles:r1154941027">.mw-parser-output .frac{white-space:nowrap}.mw-parser-output .frac .num,.mw-parser-output .frac .den{font-size:80%;line-height:0;vertical-align:super}.mw-parser-output .frac .den{vertical-align:sub}.mw-parser-output .sr-only{border:0;clip:rect(0,0,0,0);clip-path:polygon(0px 0px,0px 0px,0px 0px);height:1px;margin:-1px;overflow:hidden;padding:0;position:absolute;width:1px}</style><span class="frac"><span class="num">1</span>&#8260;<span class="den">640</span></span>&#160;sq mi</td></tr></tbody></table><style data-mw-deduplicate="TemplateStyles:r1236303919">@media screen{html.skin-theme-clientpref-night .mw-parser-output .infobox-has-images-with-white-backgrounds img{background:white}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .infobox-has-images-with-white-backgrounds img{background:white}}</style> <figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/File:Comparison_of_units_of_area.png" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/7/7e/Comparison_of_units_of_area.png/220px-Comparison_of_units_of_area.png" decoding="async" width="220" height="220" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/7/7e/Comparison_of_units_of_area.png/330px-Comparison_of_units_of_area.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/7/7e/Comparison_of_units_of_area.png/440px-Comparison_of_units_of_area.png 2x" data-file-width="1609" data-file-height="1609" /></a><figcaption>Image comparing the acre (the small pink area at lower left) to other units. The entire yellow square is one <a href="/wiki/Square_mile" title="Square mile">square mile</a>; the dark blue area at right represents 100 acres.</figcaption></figure> <p>The <b>acre</b> (<span class="rt-commentedText nowrap"><span class="IPA nopopups noexcerpt" lang="en-fonipa"><a href="/wiki/Help:IPA/English" title="Help:IPA/English">/<span style="border-bottom:1px dotted"><span title="/ˈ/: primary stress follows">ˈ</span><span title="/eɪ/: &#39;a&#39; in &#39;face&#39;">eɪ</span><span title="&#39;k&#39; in &#39;kind&#39;">k</span><span title="/ər/: &#39;er&#39; in &#39;letter&#39;">ər</span></span>/</a></span></span> <a href="/wiki/Help:Pronunciation_respelling_key" title="Help:Pronunciation respelling key"><i title="English pronunciation respelling"><span style="font-size:90%">AY</span>-kər</i></a>) is a <a href="/wiki/Unit_of_measurement" title="Unit of measurement">unit</a> of land area used in the <a href="/wiki/Imperial_units" title="Imperial units">British imperial</a> and the <a href="/wiki/United_States_customary_units#Area" title="United States customary units">United States customary</a> systems. It is traditionally defined as the area of one <a href="/wiki/Chain_(unit)" title="Chain (unit)">chain</a> by one <a href="/wiki/Furlong" title="Furlong">furlong</a> (66 by 660 <a href="/wiki/Foot_(unit)" title="Foot (unit)">feet</a>), which is exactly equal to 10 square chains, <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1154941027"><span class="frac"><span class="num">1</span>&#8260;<span class="den">640</span></span> of a square mile, 4,840 square yards, or 43,560 square feet, and approximately 4,047&#160;m<sup>2</sup>, or about 40% of a <a href="/wiki/Hectare" title="Hectare">hectare</a>. Based upon the <a href="/wiki/International_yard_and_pound" title="International yard and pound">international yard and pound agreement of 1959</a>, an acre may be declared as exactly 4,046.8564224 <a href="/wiki/Square_metre" title="Square metre">square metres</a>. The acre is sometimes abbreviated <b>ac</b><sup id="cite_ref-1" class="reference"><a href="#cite_note-1"><span class="cite-bracket">&#91;</span>1<span class="cite-bracket">&#93;</span></a></sup> but is usually spelled out as the word "acre".<sup id="cite_ref-NIST_2-0" class="reference"><a href="#cite_note-NIST-2"><span class="cite-bracket">&#91;</span>2<span class="cite-bracket">&#93;</span></a></sup> </p><p>Traditionally, in the <a href="/wiki/Middle_Ages" title="Middle Ages">Middle Ages</a>, an acre was conceived of as the area of land that could be <a href="/wiki/Plough" title="Plough">ploughed</a> by one man using a team of eight <a href="/wiki/Ox" title="Ox">oxen</a> in one day.<sup id="cite_ref-nottingham_3-0" class="reference"><a href="#cite_note-nottingham-3"><span class="cite-bracket">&#91;</span>3<span class="cite-bracket">&#93;</span></a></sup> </p><p>The acre is still a statutory measure in the United States. Both the international acre and the US survey acre are in use, but they differ by only four parts per million (see below). The most common use of the acre is to measure tracts of land. </p><p>The acre is used in many established and former <a href="/wiki/Commonwealth_of_Nations" title="Commonwealth of Nations">Commonwealth of Nations</a> countries by custom. In a few, it continues as a <a href="/wiki/Statute_measure" class="mw-redirect" title="Statute measure">statute measure</a>, although not since 2010 in the UK, and not for decades in <a href="/wiki/Metrication_in_Australia" title="Metrication in Australia">Australia</a>, <a href="/wiki/Metrication_in_New_Zealand" title="Metrication in New Zealand">New Zealand</a>, and <a href="/wiki/South_African_units_of_measurement" title="South African units of measurement">South Africa</a>. In many places where it is not a statute measure, it is still lawful to "use for trade" if given as supplementary information and is not used for <a href="/wiki/Land_registration" title="Land registration">land registration</a>. </p> <meta property="mw:PageProp/toc" /> <div class="mw-heading mw-heading2"><h2 id="Description">Description</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Acre&amp;action=edit&amp;section=1" title="Edit section: Description"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>One acre equals <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1154941027"><span class="frac"><span class="num">1</span>&#8260;<span class="den">640</span></span> (0.0015625) square mile, 4,840 square yards, 43,560 square feet,<sup id="cite_ref-NIST_2-1" class="reference"><a href="#cite_note-NIST-2"><span class="cite-bracket">&#91;</span>2<span class="cite-bracket">&#93;</span></a></sup> or about 4,047 <a href="/wiki/Square_metre" title="Square metre">square metres</a> (0.4047 <a href="/wiki/Hectare" title="Hectare">hectares</a>) (see below). While all modern variants of the acre contain 4,840 square yards, there are alternative definitions of a yard, so the exact size of an acre depends upon the particular yard on which it is based. Originally, an acre was understood as a strip of land sized at forty <a href="/wiki/Rod_(unit)" title="Rod (unit)">perches</a> (660&#160;ft, or 1&#160;<a href="/wiki/Furlong" title="Furlong">furlong</a>) long and four perches (66&#160;ft) wide;<sup id="cite_ref-Klein2012_4-0" class="reference"><a href="#cite_note-Klein2012-4"><span class="cite-bracket">&#91;</span>4<span class="cite-bracket">&#93;</span></a></sup> this may have also been understood as an approximation of the amount of land a yoke of oxen could plough in one day (a furlong being "a furrow long"). A <a href="/wiki/Square" title="Square">square</a> enclosing one acre is approximately 69.57&#160;yards, or 208&#160;feet 9&#160;inches (63.61 metres), on a side. As a unit of measure, an acre has no prescribed shape; any area of 43,560 square feet is an acre. </p> <div class="mw-heading mw-heading2"><h2 id="US_survey_acres">US survey acres</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Acre&amp;action=edit&amp;section=2" title="Edit section: US survey acres"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>In the <a href="/wiki/International_yard_and_pound" title="International yard and pound">international yard and pound</a> agreement of 1959, the United States and five countries of the <a href="/wiki/Commonwealth_of_Nations" title="Commonwealth of Nations">Commonwealth of Nations</a> defined the international yard to be exactly 0.9144 metre.<sup id="cite_ref-NBS1959_5-0" class="reference"><a href="#cite_note-NBS1959-5"><span class="cite-bracket">&#91;</span>5<span class="cite-bracket">&#93;</span></a></sup> The US authorities decided that, while the refined definition would apply nationally in all other respects, the <a href="/wiki/US_survey_foot" class="mw-redirect" title="US survey foot">US survey foot</a> (and thus the survey acre) would continue 'until such a time as it becomes desirable and expedient to readjust [it]'.<sup id="cite_ref-NBS1959_5-1" class="reference"><a href="#cite_note-NBS1959-5"><span class="cite-bracket">&#91;</span>5<span class="cite-bracket">&#93;</span></a></sup> By inference, an "international acre" may be calculated as exactly <span style="white-space:nowrap">4,046.856<span style="margin-left:0.25em">422</span><span style="margin-left:0.25em">4</span></span> square metres but it does not have a basis in any international agreement. </p><p>Both the international acre and the US survey acre contain <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1154941027"><span class="frac"><span class="num">1</span>&#8260;<span class="den">640</span></span> of a square mile or 4,840 square yards, but alternative definitions of a yard are used (see <a href="/wiki/Foot_(unit)#Survey_foot" title="Foot (unit)">survey foot</a> and <a href="/wiki/Yard#Conversions" title="Yard">survey yard</a>), so the exact size of an acre depends upon the yard upon which it is based. The US survey acre is about 4,046.872 square metres; its exact value (<style data-mw-deduplicate="TemplateStyles:r1214402035">.mw-parser-output .sfrac{white-space:nowrap}.mw-parser-output .sfrac.tion,.mw-parser-output .sfrac .tion{display:inline-block;vertical-align:-0.5em;font-size:85%;text-align:center}.mw-parser-output .sfrac .num{display:block;line-height:1em;margin:0.0em 0.1em;border-bottom:1px solid}.mw-parser-output .sfrac .den{display:block;line-height:1em;margin:0.1em 0.1em}.mw-parser-output .sr-only{border:0;clip:rect(0,0,0,0);clip-path:polygon(0px 0px,0px 0px,0px 0px);height:1px;margin:-1px;overflow:hidden;padding:0;position:absolute;width:1px}</style><span class="sfrac">&#8288;4046<span class="sr-only">+</span><span class="tion"><span class="num">13,525,426</span><span class="sr-only">/</span><span class="den">15,499,969</span></span>&#8288;</span>&#160;m<sup>2</sup>) is based on an inch defined by 1&#160;metre = 39.37&#160;inches exactly, as established by the <a href="/wiki/Mendenhall_Order" title="Mendenhall Order">Mendenhall Order</a> of 1893.<sup id="cite_ref-6" class="reference"><a href="#cite_note-6"><span class="cite-bracket">&#91;</span>6<span class="cite-bracket">&#93;</span></a></sup> Surveyors in the United States use both international and survey feet, and consequently, both varieties of acre.<sup id="cite_ref-7" class="reference"><a href="#cite_note-7"><span class="cite-bracket">&#91;</span>7<span class="cite-bracket">&#93;</span></a></sup> </p><p>Since the difference between the US survey acre and international acre (0.016 square metres, 160 square centimetres or 24.8 square inches), is only about a quarter of the size of an <a href="/wiki/ISO_216#A_series" title="ISO 216">A4 sheet</a> or <a href="/wiki/Paper_size#North_American_paper_sizes" title="Paper size">US letter</a>, it is usually not important which one is being discussed. Areas are seldom measured with sufficient accuracy for the different definitions to be detectable.<sup id="cite_ref-8" class="reference"><a href="#cite_note-8"><span class="cite-bracket">&#91;</span>8<span class="cite-bracket">&#93;</span></a></sup> </p><p>In October 2019, the <a href="/wiki/US_National_Geodetic_Survey" class="mw-redirect" title="US National Geodetic Survey">US National Geodetic Survey</a> and the <a href="/wiki/National_Institute_of_Standards_and_Technology" title="National Institute of Standards and Technology">National Institute of Standards and Technology</a> announced their joint intent to end the "temporary" continuance of the US survey foot, mile, and acre units (as permitted by their 1959 decision, above), with effect from the end of 2022.<sup id="cite_ref-9" class="reference"><a href="#cite_note-9"><span class="cite-bracket">&#91;</span>9<span class="cite-bracket">&#93;</span></a></sup><sup id="cite_ref-10" class="reference"><a href="#cite_note-10"><span class="cite-bracket">&#91;</span>10<span class="cite-bracket">&#93;</span></a></sup> </p> <div class="mw-heading mw-heading3"><h3 id="Spanish_acre">Spanish acre</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Acre&amp;action=edit&amp;section=3" title="Edit section: Spanish acre"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>The <a href="/wiki/Puerto_Rica" class="mw-redirect" title="Puerto Rica">Puerto Rican</a> <i><a href="/wiki/Cuerda" title="Cuerda">cuerda</a></i> (0.39&#160;ha; 0.97 acres) is sometimes called the "Spanish acre" in the continental United States.<sup id="cite_ref-Rowlett_11-0" class="reference"><a href="#cite_note-Rowlett-11"><span class="cite-bracket">&#91;</span>11<span class="cite-bracket">&#93;</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="Use">Use</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Acre&amp;action=edit&amp;section=4" title="Edit section: Use"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>The acre is commonly used in many current and former Commonwealth countries by custom, and in a few it continues as a <a href="/wiki/Statute_measure" class="mw-redirect" title="Statute measure">statute measure</a>. These include Antigua and Barbuda,<sup id="cite_ref-antiguaobserver_12-0" class="reference"><a href="#cite_note-antiguaobserver-12"><span class="cite-bracket">&#91;</span>12<span class="cite-bracket">&#93;</span></a></sup> <a href="/wiki/American_Samoa" title="American Samoa">American Samoa</a>,<sup id="cite_ref-samoanews_13-0" class="reference"><a href="#cite_note-samoanews-13"><span class="cite-bracket">&#91;</span>13<span class="cite-bracket">&#93;</span></a></sup> <a href="/wiki/The_Bahamas" title="The Bahamas">The Bahamas</a>,<sup id="cite_ref-thenassauguardian_14-0" class="reference"><a href="#cite_note-thenassauguardian-14"><span class="cite-bracket">&#91;</span>14<span class="cite-bracket">&#93;</span></a></sup> Belize,<sup id="cite_ref-amandala_15-0" class="reference"><a href="#cite_note-amandala-15"><span class="cite-bracket">&#91;</span>15<span class="cite-bracket">&#93;</span></a></sup> the <a href="/wiki/British_Virgin_Islands" title="British Virgin Islands">British Virgin Islands</a>,<sup id="cite_ref-bvibeacon_16-0" class="reference"><a href="#cite_note-bvibeacon-16"><span class="cite-bracket">&#91;</span>16<span class="cite-bracket">&#93;</span></a></sup> <a href="/wiki/Canada" title="Canada">Canada</a>,<sup id="cite_ref-Statistics_Canada_17-0" class="reference"><a href="#cite_note-Statistics_Canada-17"><span class="cite-bracket">&#91;</span>17<span class="cite-bracket">&#93;</span></a></sup> the <a href="/wiki/Cayman_Islands" title="Cayman Islands">Cayman Islands</a>,<sup id="cite_ref-compasscayman_18-0" class="reference"><a href="#cite_note-compasscayman-18"><span class="cite-bracket">&#91;</span>18<span class="cite-bracket">&#93;</span></a></sup> <a href="/wiki/Dominica" title="Dominica">Dominica</a>,<sup id="cite_ref-dominicanewsonline_19-0" class="reference"><a href="#cite_note-dominicanewsonline-19"><span class="cite-bracket">&#91;</span>19<span class="cite-bracket">&#93;</span></a></sup> the <a href="/wiki/Falkland_Islands" title="Falkland Islands">Falkland Islands</a>,<sup id="cite_ref-penguin-news_20-0" class="reference"><a href="#cite_note-penguin-news-20"><span class="cite-bracket">&#91;</span>20<span class="cite-bracket">&#93;</span></a></sup> <a href="/wiki/Grenada" title="Grenada">Grenada</a>,<sup id="cite_ref-grenadabroadcast_21-0" class="reference"><a href="#cite_note-grenadabroadcast-21"><span class="cite-bracket">&#91;</span>21<span class="cite-bracket">&#93;</span></a></sup> <a href="/wiki/Ghana" title="Ghana">Ghana</a>,<sup id="cite_ref-22" class="reference"><a href="#cite_note-22"><span class="cite-bracket">&#91;</span>22<span class="cite-bracket">&#93;</span></a></sup> <a href="/wiki/Guam" title="Guam">Guam</a>,<sup id="cite_ref-guampdn_23-0" class="reference"><a href="#cite_note-guampdn-23"><span class="cite-bracket">&#91;</span>23<span class="cite-bracket">&#93;</span></a></sup> the <a href="/wiki/Northern_Mariana_Islands" title="Northern Mariana Islands">Northern Mariana Islands</a>,<sup id="cite_ref-saipantribune_24-0" class="reference"><a href="#cite_note-saipantribune-24"><span class="cite-bracket">&#91;</span>24<span class="cite-bracket">&#93;</span></a></sup> <a href="/wiki/Jamaica" title="Jamaica">Jamaica</a>,<sup id="cite_ref-25" class="reference"><a href="#cite_note-25"><span class="cite-bracket">&#91;</span>25<span class="cite-bracket">&#93;</span></a></sup> <a href="/wiki/Montserrat" title="Montserrat">Montserrat</a>,<sup id="cite_ref-themontserratreporter_26-0" class="reference"><a href="#cite_note-themontserratreporter-26"><span class="cite-bracket">&#91;</span>26<span class="cite-bracket">&#93;</span></a></sup> <a href="/wiki/Samoa" title="Samoa">Samoa</a>,<sup id="cite_ref-samoaobserver_27-0" class="reference"><a href="#cite_note-samoaobserver-27"><span class="cite-bracket">&#91;</span>27<span class="cite-bracket">&#93;</span></a></sup> <a href="/wiki/Saint_Lucia" title="Saint Lucia">Saint Lucia</a>,<sup id="cite_ref-thevoiceslu_28-0" class="reference"><a href="#cite_note-thevoiceslu-28"><span class="cite-bracket">&#91;</span>28<span class="cite-bracket">&#93;</span></a></sup> <a href="/wiki/St._Helena" class="mw-redirect" title="St. Helena">St. Helena</a>,<sup id="cite_ref-sthelenaonline_29-0" class="reference"><a href="#cite_note-sthelenaonline-29"><span class="cite-bracket">&#91;</span>29<span class="cite-bracket">&#93;</span></a></sup> <a href="/wiki/St._Kitts_and_Nevis" class="mw-redirect" title="St. Kitts and Nevis">St. Kitts and Nevis</a>,<sup id="cite_ref-thestkittsnevisobserver_30-0" class="reference"><a href="#cite_note-thestkittsnevisobserver-30"><span class="cite-bracket">&#91;</span>30<span class="cite-bracket">&#93;</span></a></sup> <a href="/wiki/St._Vincent_and_the_Grenadines" class="mw-redirect" title="St. Vincent and the Grenadines">St. Vincent and the Grenadines</a>,<sup id="cite_ref-iwnsvg_31-0" class="reference"><a href="#cite_note-iwnsvg-31"><span class="cite-bracket">&#91;</span>31<span class="cite-bracket">&#93;</span></a></sup> <a href="/wiki/Turks_and_Caicos" class="mw-redirect" title="Turks and Caicos">Turks and Caicos</a>,<sup id="cite_ref-suntci_32-0" class="reference"><a href="#cite_note-suntci-32"><span class="cite-bracket">&#91;</span>32<span class="cite-bracket">&#93;</span></a></sup> the United Kingdom, the United States and the <a href="/wiki/US_Virgin_Islands" class="mw-redirect" title="US Virgin Islands">US Virgin Islands</a>.<sup id="cite_ref-virginislandsdailynews_33-0" class="reference"><a href="#cite_note-virginislandsdailynews-33"><span class="cite-bracket">&#91;</span>33<span class="cite-bracket">&#93;</span></a></sup> </p> <div class="mw-heading mw-heading3"><h3 id="Republic_of_Ireland">Republic of Ireland</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Acre&amp;action=edit&amp;section=5" title="Edit section: Republic of Ireland"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>In the <a href="/wiki/Republic_of_Ireland" title="Republic of Ireland">Republic of Ireland</a>, the hectare is legally used under <a href="/wiki/European_units_of_measurement_directives" title="European units of measurement directives">European units of measurement directives</a>; however, the acre (the same standard statute as used in the UK, not the old <a href="/wiki/Irish_measure" title="Irish measure">Irish acre</a>, which was of a different size) is still widely used, especially in agriculture.<sup id="cite_ref-34" class="reference"><a href="#cite_note-34"><span class="cite-bracket">&#91;</span>34<span class="cite-bracket">&#93;</span></a></sup><sup id="cite_ref-35" class="reference"><a href="#cite_note-35"><span class="cite-bracket">&#91;</span>35<span class="cite-bracket">&#93;</span></a></sup><sup id="cite_ref-36" class="reference"><a href="#cite_note-36"><span class="cite-bracket">&#91;</span>36<span class="cite-bracket">&#93;</span></a></sup><sup id="cite_ref-37" class="reference"><a href="#cite_note-37"><span class="cite-bracket">&#91;</span>37<span class="cite-bracket">&#93;</span></a></sup> </p> <div class="mw-heading mw-heading3"><h3 id="Indian_subcontinent">Indian subcontinent</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Acre&amp;action=edit&amp;section=6" title="Edit section: Indian subcontinent"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>In India, residential plots are measured in square feet or square metre, while agricultural land is measured in acres.<sup id="cite_ref-38" class="reference"><a href="#cite_note-38"><span class="cite-bracket">&#91;</span>38<span class="cite-bracket">&#93;</span></a></sup> In <a href="/wiki/Sri_Lanka" title="Sri Lanka">Sri Lanka</a>, the division of an acre into 160&#160;<a href="/wiki/Perch_(unit)" class="mw-redirect" title="Perch (unit)">perches</a> or 4&#160;<a href="/wiki/Rood_(measurement)" class="mw-redirect" title="Rood (measurement)">roods</a> is common.<sup id="cite_ref-39" class="reference"><a href="#cite_note-39"><span class="cite-bracket">&#91;</span>39<span class="cite-bracket">&#93;</span></a></sup> </p><p>In Pakistan, residential plots are measured in <span title="Urdu-language text"><i lang="ur-Latn">kanal</i></span> (20 <span title="Urdu-language text"><i lang="ur-Latn">marla</i></span> = 1&#160;<span title="Urdu-language text"><i lang="ur-Latn">kanal</i></span> = 605 sq yards) and open/agriculture land measurement is in acres (8 <span title="Urdu-language text"><i lang="ur-Latn">kanal</i></span> = 1 acre) and <span title="Urdu-language text"><i lang="ur-Latn">muraba</i></span> (25 acres = 1 <span title="Urdu-language text"><i lang="ur-Latn">muraba</i></span> = 200 <span title="Urdu-language text"><i lang="ur-Latn">kanal</i></span>), <span title="Urdu-language text"><i lang="ur-Latn"><a href="/wiki/Jerib" title="Jerib">jerib</a>, wiswa</i></span> and <span title="Urdu-language text"><i lang="ur-Latn"><a href="/wiki/Gunta" title="Gunta">gunta</a></i></span>.<sup id="cite_ref-40" class="reference"><a href="#cite_note-40"><span class="cite-bracket">&#91;</span>40<span class="cite-bracket">&#93;</span></a></sup><sup id="cite_ref-41" class="reference"><a href="#cite_note-41"><span class="cite-bracket">&#91;</span>41<span class="cite-bracket">&#93;</span></a></sup> </p> <div class="mw-heading mw-heading3"><h3 id="United_Kingdom">United Kingdom</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Acre&amp;action=edit&amp;section=7" title="Edit section: United Kingdom"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Its use as a primary unit for trade in the United Kingdom ceased to be permitted from 1 October 1995, due to the 1994 amendment of the <a href="/wiki/Weights_and_Measures_Act_1985" class="mw-redirect" title="Weights and Measures Act 1985">Weights and Measures Act</a>,<sup id="cite_ref-UK1994_42-0" class="reference"><a href="#cite_note-UK1994-42"><span class="cite-bracket">&#91;</span>42<span class="cite-bracket">&#93;</span></a></sup> where it was replaced by the <a href="/wiki/Hectare" title="Hectare">hectare</a>&#160;&#8211;&#32; though its use as a supplementary unit continues to be permitted indefinitely.<sup id="cite_ref-legislation_20093045_43-0" class="reference"><a href="#cite_note-legislation_20093045-43"><span class="cite-bracket">&#91;</span>43<span class="cite-bracket">&#93;</span></a></sup> This was with the exemption of <a href="/wiki/Land_registration" title="Land registration">Land registration</a>,<sup id="cite_ref-UK1994_42-1" class="reference"><a href="#cite_note-UK1994-42"><span class="cite-bracket">&#91;</span>42<span class="cite-bracket">&#93;</span></a></sup> which records the sale and possession of land,<sup id="cite_ref-44" class="reference"><a href="#cite_note-44"><span class="cite-bracket">&#91;</span>44<span class="cite-bracket">&#93;</span></a></sup> in 2010 <a href="/wiki/HM_Land_Registry" title="HM Land Registry">HM Land Registry</a> ended its exemption.<sup id="cite_ref-legislation_20093045_43-1" class="reference"><a href="#cite_note-legislation_20093045-43"><span class="cite-bracket">&#91;</span>43<span class="cite-bracket">&#93;</span></a></sup> The measure is still used to communicate with the public<sup id="cite_ref-45" class="reference"><a href="#cite_note-45"><span class="cite-bracket">&#91;</span>45<span class="cite-bracket">&#93;</span></a></sup> and informally (non-contract) by the farming and property industries.<sup id="cite_ref-46" class="reference"><a href="#cite_note-46"><span class="cite-bracket">&#91;</span>46<span class="cite-bracket">&#93;</span></a></sup><sup id="cite_ref-47" class="reference"><a href="#cite_note-47"><span class="cite-bracket">&#91;</span>47<span class="cite-bracket">&#93;</span></a></sup><sup id="cite_ref-48" class="reference"><a href="#cite_note-48"><span class="cite-bracket">&#91;</span>48<span class="cite-bracket">&#93;</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="Equivalence_to_other_units_of_area">Equivalence to other units of area</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Acre&amp;action=edit&amp;section=8" title="Edit section: Equivalence to other units of area"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <figure typeof="mw:File/Frame"><a href="/wiki/File:Acre_superimposed_over_football_fields.svg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/b/b8/Acre_superimposed_over_football_fields.svg/404px-Acre_superimposed_over_football_fields.svg.png" decoding="async" width="404" height="218" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/b/b8/Acre_superimposed_over_football_fields.svg/606px-Acre_superimposed_over_football_fields.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/b/b8/Acre_superimposed_over_football_fields.svg/808px-Acre_superimposed_over_football_fields.svg.png 2x" data-file-width="404" data-file-height="218" /></a><figcaption>The area of one acre (red) superposed on an <a href="/wiki/American_football" title="American football">American football</a> field (green) and <a href="/wiki/Association_football" title="Association football">Association football</a>/soccer pitch (blue)</figcaption></figure> <p>1 international acre is equal to the following metric units: </p> <ul><li>0.40468564224 hectare (A square with 100&#160;m sides has an area of 1 hectare.)</li> <li>4,046.8564224 square metres (or a square with approximately 63.61&#160;m sides)</li></ul> <p>1 United States survey acre is equal to: </p> <ul><li>0.404687261 <a href="/wiki/Hectare" title="Hectare">hectare</a></li> <li>4,046.87261 square metres (1 square kilometre is equal to 247.105 acres)</li></ul> <p>1 acre (both variants) is equal to the following customary units: </p> <ul><li>66 feet × 660 feet (43,560 square feet)</li> <li>10 square <a href="/wiki/Chain_(unit)" title="Chain (unit)">chains</a> (1 chain = 66 feet = 22 yards = 4 rods = 100 <a href="/wiki/Link_(unit)" title="Link (unit)">links</a>)</li> <li>1 acre is approximately 208.71 feet × 208.71 feet (a square)</li> <li>4,840 square yards</li> <li>43,560 square feet</li> <li>160 <a href="/wiki/Perch_(unit)" class="mw-redirect" title="Perch (unit)">perches</a>. A perch is equal to a square <a href="/wiki/Rod_(length)" class="mw-redirect" title="Rod (length)">rod</a> (1 square rod is 0.00625 acre)</li> <li>4 <a href="/wiki/Rood_(measurement)" class="mw-redirect" title="Rood (measurement)">roods</a></li> <li>A furlong by a chain (furlong 220 yards, chain 22 yards)</li> <li>40 rods by 4 rods, 160 rods<sup>2</sup> (historically fencing was often sold in 40 rod lengths<sup id="cite_ref-49" class="reference"><a href="#cite_note-49"><span class="cite-bracket">&#91;</span>49<span class="cite-bracket">&#93;</span></a></sup>)</li> <li><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1154941027"><span class="frac"><span class="num">1</span>&#8260;<span class="den">640</span></span> (0.0015625) square mile (1 square mile is equal to 640 acres)</li></ul> <p>Perhaps the easiest way for US residents to envision an acre is as a rectangle measuring 88 yards by 55 yards (<link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1154941027"><span class="frac"><span class="num">1</span>&#8260;<span class="den">10</span></span> of 880 yards by <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1154941027"><span class="frac"><span class="num">1</span>&#8260;<span class="den">16</span></span> of 880 yards), about <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1154941027"><span class="frac"><span class="num">9</span>&#8260;<span class="den">10</span></span> the size of a standard <a href="/wiki/American_football_field" title="American football field">American football field</a>. To be more exact, one acre is 90.75% of a 100-yd-long by 53.33-yd-wide American football field (without the <a href="/wiki/End_zone" title="End zone">end zone</a>). The full field, including the end zones, covers about 1.32 acres (0.53&#160;ha). </p><p>For residents of other countries, the acre might be envisioned as rather more than half of a 1.76 acres (0.71&#160;ha) <a href="/wiki/Football_pitch" title="Football pitch">football pitch</a>. </p> <div class="mw-heading mw-heading2"><h2 id="Historical_origin">Historical origin</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Acre&amp;action=edit&amp;section=9" title="Edit section: Historical origin"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <figure class="mw-halign-right" typeof="mw:File/Thumb"><a href="/wiki/File:Anthropic_Farm_Units.png" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/3/39/Anthropic_Farm_Units.png/400px-Anthropic_Farm_Units.png" decoding="async" width="400" height="323" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/3/39/Anthropic_Farm_Units.png/600px-Anthropic_Farm_Units.png 1.5x, //upload.wikimedia.org/wikipedia/commons/3/39/Anthropic_Farm_Units.png 2x" data-file-width="605" data-file-height="489" /></a><figcaption>Farm-derived units of measurement:<ol> <li>The <a href="/wiki/Rod_(unit)" title="Rod (unit)">rod</a> is a historical unit of length equal to <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1154941027"><span class="frac">5<span class="sr-only">+</span><span class="num">1</span>&#8260;<span class="den">2</span></span> yards. It may have originated from the typical length of a mediaeval <a href="/wiki/Goad" title="Goad">ox-goad</a>. There are 4 rods in one <a href="/wiki/Chain_(unit)" title="Chain (unit)">chain</a>.</li> <li>The <a href="/wiki/Furlong" title="Furlong">furlong</a> (meaning furrow length) was the distance a team of oxen could plough without resting. This was standardised to be exactly 40 rods or 10 chains.</li> <li>An <a class="mw-selflink selflink">acre</a> was the amount of land tillable by one man behind one team of eight oxen in one day. Traditional acres were long and narrow due to the difficulty in turning the plough and the <a href="/wiki/Ribbon_farm" title="Ribbon farm">value of river front access</a>.</li> <li>An <a href="/wiki/Oxgang" title="Oxgang">oxgang</a> was the amount of land tillable by one ox in a ploughing season. This could vary from village to village, but was typically around 15 acres.</li> <li>A <a href="/wiki/Virgate" title="Virgate">virgate</a> was the amount of land tillable by two oxen in a ploughing season.</li> <li>A <a href="/wiki/Carucate" title="Carucate">carucate</a> was the amount of land tillable by a team of eight oxen in a ploughing season. This was equal to 8 oxgangs or 4 virgates.</li> </ol> </figcaption></figure> <p>The word acre is derived from the <a href="/wiki/Norman_language" title="Norman language">Norman</a>, attested for the first time in a text of <a href="/wiki/F%C3%A9camp" title="Fécamp">Fécamp</a> in 1006 to the meaning of «agrarian measure».<sup id="cite_ref-50" class="reference"><a href="#cite_note-50"><span class="cite-bracket">&#91;</span>50<span class="cite-bracket">&#93;</span></a></sup> Acre dates back to the old Scandinavian akr “cultivated field, ploughed land” which is perpetuated in <a href="/wiki/Icelandic_language" title="Icelandic language">Icelandic</a> and the <a href="/wiki/Faroese_language" title="Faroese language">Faroese</a> <span title="German-language text"><i lang="de">akur</i></span> “field (wheat)”, <a href="/wiki/Norwegian_language" title="Norwegian language">Norwegian</a> and <a href="/wiki/Swedish_language" title="Swedish language">Swedish</a> <span title="German-language text"><i lang="de">åker</i></span>, <a href="/wiki/Danish_language" title="Danish language">Danish</a> <span title="German-language text"><i lang="de">ager</i></span> “field”, <a href="/wiki/Cognate" title="Cognate">cognate</a> with <a href="/wiki/German_language" title="German language">German</a> <span title="German-language text"><i lang="de">Acker</i></span>, <a href="/wiki/Dutch_language" title="Dutch language">Dutch</a> <span title="Dutch-language text"><i lang="nl">akker</i></span>, <a href="/wiki/Latin" title="Latin">Latin</a> <span title="Latin-language text"><i lang="la">ager</i></span>, <a href="/wiki/Sanskrit" title="Sanskrit">Sanskrit</a> <span title="Sanskrit-language text"><i lang="sa-Latn">ajr</i></span>, and <a href="/wiki/Greek_language" title="Greek language">Greek</a> <span title="Greek-language text"><span lang="el">αγρός</span></span> (<span title="Greek-language text"><i lang="el-Latn">agros</i></span>). In English, an obsolete variant spelling was <i><a href="https://en.wiktionary.org/wiki/aker" class="extiw" title="wikt:aker">aker</a></i>. </p><p>According to the <a href="/wiki/Act_on_the_Composition_of_Yards_and_Perches" class="mw-redirect" title="Act on the Composition of Yards and Perches">Act on the Composition of Yards and Perches</a>, dating from around 1300, an acre is "40 <a href="/wiki/Perch_(unit)" class="mw-redirect" title="Perch (unit)">perches</a> [<a href="/wiki/Rod_(unit)" title="Rod (unit)">rods</a>] in length and four in breadth",<sup id="cite_ref-BritainRuffhead1765_51-0" class="reference"><a href="#cite_note-BritainRuffhead1765-51"><span class="cite-bracket">&#91;</span>51<span class="cite-bracket">&#93;</span></a></sup> meaning 220 yards by 22 yards.<sup id="cite_ref-52" class="reference"><a href="#cite_note-52"><span class="cite-bracket">&#91;</span>a<span class="cite-bracket">&#93;</span></a></sup> As detailed in the diagram, an acre was roughly the amount of land tillable by a yoke of oxen in one day.<sup id="cite_ref-53" class="reference"><a href="#cite_note-53"><span class="cite-bracket">&#91;</span>52<span class="cite-bracket">&#93;</span></a></sup> </p><p>Before the enactment of the <a href="/wiki/Metric_system" title="Metric system">metric system</a>, many countries in Europe used their own official acres. In France, the traditional unit of area was the <i><a href="/wiki/Arpent#Area" title="Arpent">arpent carré</a></i>, a measure based on the Roman system of land measurement. The <span title="French-language text"><i lang="fr">acre</i></span> was used only in <a href="/wiki/Normandy" title="Normandy">Normandy</a> (and neighbouring places outside its traditional borders), but its value varied greatly across Normandy, ranging from 3,632 to 9,725 square metres, with 8,172 square metres being the most frequent value.<sup class="noprint Inline-Template" style="margin-left:0.1em; white-space:nowrap;">&#91;<i><a href="/wiki/Wikipedia:Please_clarify" title="Wikipedia:Please clarify"><span title="What is this in traditional units? How was it measured? (June 2023)">clarification needed</span></a></i>&#93;</sup> But inside the same <span title="French-language text"><i lang="fr">pays</i></span> of Normandy, for instance in <a href="/wiki/Pays_de_Caux" title="Pays de Caux">pays de Caux</a>, the farmers (still in the 20th century) made the difference between the <span title="French-language text"><i lang="fr">grande acre</i></span> (68 ares, 66 centiares) and the <span title="French-language text"><i lang="fr">petite acre</i></span> (56 to 65 ca).<sup id="cite_ref-54" class="reference"><a href="#cite_note-54"><span class="cite-bracket">&#91;</span>53<span class="cite-bracket">&#93;</span></a></sup> The Normandy <span title="French-language text"><i lang="fr">acre</i></span> was usually divided in 4 <span title="French-language text"><i lang="fr">vergées</i></span> (<a href="/wiki/Rood_(unit)" title="Rood (unit)">roods</a>) and 160 square <span title="French-language text"><i lang="fr">perches</i></span>, like the English acre. </p><p>The Normandy <span title="French-language text"><i lang="fr">acre</i></span> was equal to 1.6 <span title="French-language text"><i lang="fr"><a href="/wiki/Arpent" title="Arpent">arpents</a></i></span>, the unit of area more commonly used in Northern France outside of Normandy. In Canada, the Paris <span title="French-language text"><i lang="fr">arpent</i></span> used in <a href="/wiki/Quebec" title="Quebec">Quebec</a> before the metric system was adopted is sometimes called "French acre" in English, even though the Paris <span title="French-language text"><i lang="fr">arpent</i></span> and the Normandy <span title="French-language text"><i lang="fr">acre</i></span> were two very different units of area in ancient France (the Paris <span title="French-language text"><i lang="fr">arpent</i></span> became the unit of area of French Canada, whereas the Normandy <span title="French-language text"><i lang="fr">acre</i></span> was never used in French Canada). </p><p>In Germany, the Netherlands, and Eastern Europe the traditional unit of area was <span title="German-language text"><i lang="de"><a href="/wiki/Morgen" title="Morgen">Morgen</a></i></span>. Like the acre, the <i>morgen</i> was a unit of ploughland, representing a strip that could be ploughed by one man and an ox or horse in a morning. There were many variants of the <i>morgen</i>, differing between the different German territories, ranging from <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1154941027"><span class="frac"><span class="num">1</span>&#8260;<span class="den">2</span></span> to <span class="frac">2<span class="sr-only">+</span><span class="num">1</span>&#8260;<span class="den">2</span></span> acres (2,000 to 10,100&#160;m<sup>2</sup>). It was also used in <a href="/wiki/Old_Prussia" class="mw-redirect" title="Old Prussia">Old Prussia</a>, in the Balkans, <a href="/wiki/Norway" title="Norway">Norway</a>, and <a href="/wiki/Denmark" title="Denmark">Denmark</a>, where it was equal to about two-thirds acre (2,700&#160;m<sup>2</sup>). </p><p>Statutory values for the acre were enacted in England, and subsequently the United Kingdom, by acts of: </p> <ul><li><a href="/wiki/Edward_I_of_England" title="Edward I of England">Edward I</a></li> <li><a href="/wiki/Edward_III_of_England" title="Edward III of England">Edward III</a></li> <li><a href="/wiki/Henry_VIII_of_England" class="mw-redirect" title="Henry VIII of England">Henry VIII</a></li> <li><a href="/wiki/George_IV_of_the_United_Kingdom" class="mw-redirect" title="George IV of the United Kingdom">George IV</a></li> <li><a href="/wiki/Queen_Victoria" title="Queen Victoria">Queen Victoria</a> – the British <a href="/wiki/Weights_and_Measures_Acts_of_1878_to_1893" class="mw-redirect" title="Weights and Measures Acts of 1878 to 1893">Weights and Measures Act</a> of 1878 defined it as containing 4,840 square yards.</li></ul> <p>Historically, the size of farms and landed estates in the United Kingdom was usually expressed in acres (or acres, <a href="/wiki/Rood_(measurement)" class="mw-redirect" title="Rood (measurement)">roods</a>, and <a href="/wiki/Perch_(unit)" class="mw-redirect" title="Perch (unit)">perches</a>), even if the number of acres was so large that it might conveniently have been expressed in square miles. For example, a certain landowner might have been said to own 32,000 acres of land, not 50 square miles of land. </p><p>The acre is related to the square mile, with 640 acres making up one square mile. One mile is 5280 feet (1760 yards). In western Canada and the western United States, divisions of land area were typically based on the square mile, and fractions thereof. If the square mile is divided into quarters, each quarter has a side length of <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1154941027"><span class="frac"><span class="num">1</span>&#8260;<span class="den">2</span></span> mile (880 yards) and is <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1154941027"><span class="frac"><span class="num">1</span>&#8260;<span class="den">4</span></span> square mile in area, or 160 acres. These subunits are typically then again divided into quarters, with each side being <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1154941027"><span class="frac"><span class="num">1</span>&#8260;<span class="den">4</span></span> mile long, and being <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1154941027"><span class="frac"><span class="num">1</span>&#8260;<span class="den">16</span></span> of a square mile in area, or 40 acres. In the United States, farmland was typically divided as such, and the phrase "the back 40" refers to the 40-acre parcel to the back of the farm. Most of the <a href="/wiki/Canadian_Prairie_Provinces" class="mw-redirect" title="Canadian Prairie Provinces">Canadian Prairie Provinces</a> and the US Midwest are on square-mile grids for surveying purposes. </p> <div class="mw-heading mw-heading2"><h2 id="Legacy_units">Legacy units</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Acre&amp;action=edit&amp;section=10" title="Edit section: Legacy units"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li>Customary acre – The customary acre was roughly similar to the Imperial acre, but it was subject to considerable local variation similar to the variation in <a href="/wiki/Carucate" title="Carucate">carucates</a>, <a href="/wiki/Virgate" title="Virgate">virgates</a>, <a href="/wiki/Oxgang" title="Oxgang">bovates</a>, nooks, and farundels. These may have been multiples of the customary acre, rather than the statute acre.</li> <li>Builder's acre = an even 40,000 square feet (3,700&#160;m<sup>2</sup>) or 200 by 200 feet (61&#160;m ×&#160;61&#160;m), used in US real-estate development to simplify the math and for marketing. It is nearly 10% smaller than a survey acre, and the discrepancy has led to lawsuits alleging misrepresentation.<sup id="cite_ref-55" class="reference"><a href="#cite_note-55"><span class="cite-bracket">&#91;</span>54<span class="cite-bracket">&#93;</span></a></sup></li> <li><a href="/wiki/Feddan" title="Feddan">Feddan</a> - Middle Eastern measurement unit, 4,200 square metres (1.0378 acres).</li> <li><a href="/wiki/Acre_(Scots)" class="mw-redirect" title="Acre (Scots)">Scottish acre</a> = 1.3 Imperial acres (5,080 m<sup>2</sup>, an obsolete <a href="/wiki/Scottish_units" title="Scottish units">Scottish measurement</a>)</li> <li><a href="/wiki/Acre_(Irish)" class="mw-redirect" title="Acre (Irish)">Irish acre</a> = 7,840 square yards (6,560&#160;m<sup>2</sup>)</li> <li><a href="/wiki/Acre_(Cheshire)" title="Acre (Cheshire)">Cheshire acre</a> = 10,240 square yards (8,560&#160;m<sup>2</sup>)<sup id="cite_ref-56" class="reference"><a href="#cite_note-56"><span class="cite-bracket">&#91;</span>55<span class="cite-bracket">&#93;</span></a></sup></li> <li><a href="/wiki/Stremma" title="Stremma">Stremma</a> or Greek acre ≈ 10,000 square <a href="/wiki/Greek_feet" class="mw-redirect" title="Greek feet">Greek feet</a>, but now set at exactly 1,000 square metres (a similar unit was the <a href="/w/index.php?title=Zeugarion&amp;action=edit&amp;redlink=1" class="new" title="Zeugarion (page does not exist)">zeugarion</a>)<sup id="cite_ref-Malcolm_57-0" class="reference"><a href="#cite_note-Malcolm-57"><span class="cite-bracket">&#91;</span>56<span class="cite-bracket">&#93;</span></a></sup></li> <li><a href="/wiki/Dunam" title="Dunam">Dunam</a> or Turkish acre ≈ 1,600 square <a href="/wiki/Ottoman_units_of_measurement" title="Ottoman units of measurement">Turkish paces</a>, but now set at exactly 1,000 square metres (a similar unit was the <a href="/w/index.php?title=%C3%87ift&amp;action=edit&amp;redlink=1" class="new" title="Çift (page does not exist)">çift</a>)<sup id="cite_ref-Malcolm_57-1" class="reference"><a href="#cite_note-Malcolm-57"><span class="cite-bracket">&#91;</span>56<span class="cite-bracket">&#93;</span></a></sup></li> <li><a href="/wiki/Ancient_Roman_units_of_measurement#Area" title="Ancient Roman units of measurement">Actus quadratus</a> or Roman acre ≈ 14,400 square <a href="/wiki/Roman_feet" class="mw-redirect" title="Roman feet">Roman feet</a> (about 1,260 square metres)</li> <li><a href="/wiki/God%27s_Acre" title="God&#39;s Acre">God's Acre</a> – a synonym for a churchyard.<sup id="cite_ref-58" class="reference"><a href="#cite_note-58"><span class="cite-bracket">&#91;</span>57<span class="cite-bracket">&#93;</span></a></sup></li> <li><a href="/wiki/Drovers%27_road#Long_acre" title="Drovers&#39; road">Long acre</a> &#160;&#8211;&#32; the grass strip on either side of a road that may be used for illicit grazing.</li> <li><a href="/wiki/Town_acre" class="mw-redirect" title="Town acre">Town acre</a> was a term used in early 19th century in the planning of towns on a <a href="/wiki/Grid_plan" title="Grid plan">grid plan</a>, such as <a href="/wiki/Adelaide" title="Adelaide">Adelaide</a>, <a href="/wiki/South_Australia" title="South Australia">South Australia</a><sup id="cite_ref-59" class="reference"><a href="#cite_note-59"><span class="cite-bracket">&#91;</span>58<span class="cite-bracket">&#93;</span></a></sup><sup id="cite_ref-60" class="reference"><a href="#cite_note-60"><span class="cite-bracket">&#91;</span>59<span class="cite-bracket">&#93;</span></a></sup> and <a href="/wiki/Wellington,_New_Zealand" class="mw-redirect" title="Wellington, New Zealand">Wellington</a>, <a href="/wiki/New_Plymouth,_New_Zealand" class="mw-redirect" title="New Plymouth, New Zealand">New Plymouth</a> and <a href="/wiki/Nelson,_New_Zealand" title="Nelson, New Zealand">Nelson</a> in New Zealand. The land was divided into plots of an Imperial acre, and these became known as town acres.<sup id="cite_ref-encycnz_61-0" class="reference"><a href="#cite_note-encycnz-61"><span class="cite-bracket">&#91;</span>60<span class="cite-bracket">&#93;</span></a></sup></li></ul> <div class="mw-heading mw-heading2"><h2 id="See_also">See also</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Acre&amp;action=edit&amp;section=11" title="Edit section: See also"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <style data-mw-deduplicate="TemplateStyles:r1184024115">.mw-parser-output .div-col{margin-top:0.3em;column-width:30em}.mw-parser-output .div-col-small{font-size:90%}.mw-parser-output .div-col-rules{column-rule:1px solid #aaa}.mw-parser-output .div-col dl,.mw-parser-output .div-col ol,.mw-parser-output .div-col ul{margin-top:0}.mw-parser-output .div-col li,.mw-parser-output .div-col dd{page-break-inside:avoid;break-inside:avoid-column}</style><div class="div-col" style="column-width: 30em;"> <ul><li><a href="/wiki/Acre-foot" title="Acre-foot">Acre-foot</a> – used in US to measure a large water volume</li> <li><a href="/wiki/Anthropic_units" title="Anthropic units">Anthropic units</a></li> <li><a href="/wiki/Conversion_of_units" title="Conversion of units">Conversion of units</a></li> <li><a href="/wiki/Arpent" title="Arpent">French arpent</a> – used in <a href="/wiki/Louisiana" title="Louisiana">Louisiana</a> to measure length and area</li> <li><a href="/wiki/Jugerum" title="Jugerum">Jugerum</a></li> <li>a <a href="/wiki/Morgen" title="Morgen">Morgen</a> ("morning") of land is normally <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1154941027"><span class="frac"><span class="num">2</span>&#8260;<span class="den">3</span></span> of a Tagwerk ("day work") of ploughing with an ox</li> <li><a href="/wiki/Public_Land_Survey_System" title="Public Land Survey System">Public Land Survey System</a></li> <li><a href="/wiki/Quarter_acre" title="Quarter acre">Quarter acre</a></li> <li><a href="/wiki/Section_(United_States_land_surveying)" title="Section (United States land surveying)">Section (United States land surveying)</a></li> <li><a href="/wiki/Spanish_customary_units" class="mw-redirect" title="Spanish customary units">Spanish customary units</a></li> <li><a href="/wiki/Chinese_acre" class="mw-redirect" title="Chinese acre">Chinese acre</a></li></ul> </div> <div class="mw-heading mw-heading2"><h2 id="Notes">Notes</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Acre&amp;action=edit&amp;section=12" title="Edit section: Notes"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <style data-mw-deduplicate="TemplateStyles:r1239543626">.mw-parser-output .reflist{margin-bottom:0.5em;list-style-type:decimal}@media screen{.mw-parser-output .reflist{font-size:90%}}.mw-parser-output .reflist .references{font-size:100%;margin-bottom:0;list-style-type:inherit}.mw-parser-output .reflist-columns-2{column-width:30em}.mw-parser-output .reflist-columns-3{column-width:25em}.mw-parser-output .reflist-columns{margin-top:0.3em}.mw-parser-output .reflist-columns ol{margin-top:0}.mw-parser-output .reflist-columns li{page-break-inside:avoid;break-inside:avoid-column}.mw-parser-output .reflist-upper-alpha{list-style-type:upper-alpha}.mw-parser-output .reflist-upper-roman{list-style-type:upper-roman}.mw-parser-output .reflist-lower-alpha{list-style-type:lower-alpha}.mw-parser-output .reflist-lower-greek{list-style-type:lower-greek}.mw-parser-output .reflist-lower-roman{list-style-type:lower-roman}</style><div class="reflist reflist-lower-alpha"> <div class="mw-references-wrap"><ol class="references"> <li id="cite_note-52"><span class="mw-cite-backlink"><b><a href="#cite_ref-52">^</a></b></span> <span class="reference-text">22 yards is about 20 meters.</span> </li> </ol></div></div> <div class="mw-heading mw-heading2"><h2 id="References">References</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Acre&amp;action=edit&amp;section=13" title="Edit section: References"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1239543626"><div class="reflist"> <div class="mw-references-wrap mw-references-columns"><ol class="references"> <li id="cite_note-1"><span class="mw-cite-backlink"><b><a href="#cite_ref-1">^</a></b></span> <span class="reference-text"><style data-mw-deduplicate="TemplateStyles:r1238218222">.mw-parser-output cite.citation{font-style:inherit;word-wrap:break-word}.mw-parser-output .citation q{quotes:"\"""\"""'""'"}.mw-parser-output .citation:target{background-color:rgba(0,127,255,0.133)}.mw-parser-output .id-lock-free.id-lock-free a{background:url("//upload.wikimedia.org/wikipedia/commons/6/65/Lock-green.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-limited.id-lock-limited a,.mw-parser-output .id-lock-registration.id-lock-registration a{background:url("//upload.wikimedia.org/wikipedia/commons/d/d6/Lock-gray-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-subscription.id-lock-subscription a{background:url("//upload.wikimedia.org/wikipedia/commons/a/aa/Lock-red-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .cs1-ws-icon a{background:url("//upload.wikimedia.org/wikipedia/commons/4/4c/Wikisource-logo.svg")right 0.1em center/12px no-repeat}body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-free a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-limited a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-registration a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-subscription a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .cs1-ws-icon a{background-size:contain;padding:0 1em 0 0}.mw-parser-output .cs1-code{color:inherit;background:inherit;border:none;padding:inherit}.mw-parser-output .cs1-hidden-error{display:none;color:var(--color-error,#d33)}.mw-parser-output .cs1-visible-error{color:var(--color-error,#d33)}.mw-parser-output .cs1-maint{display:none;color:#085;margin-left:0.3em}.mw-parser-output .cs1-kern-left{padding-left:0.2em}.mw-parser-output .cs1-kern-right{padding-right:0.2em}.mw-parser-output .citation .mw-selflink{font-weight:inherit}@media screen{.mw-parser-output .cs1-format{font-size:95%}html.skin-theme-clientpref-night .mw-parser-output .cs1-maint{color:#18911f}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .cs1-maint{color:#18911f}}</style><cite id="CITEREFFenna2002" class="citation book cs1">Fenna, Donald (2002). <span class="id-lock-registration" title="Free registration required"><a rel="nofollow" class="external text" href="https://archive.org/details/dictionaryofweig0000fenn"><i>Dictionary of Weights, Measures and Units</i></a></span>. Oxford University Press. p.&#160;<a rel="nofollow" class="external text" href="https://archive.org/details/dictionaryofweig0000fenn/page/4">4</a>. <a href="/wiki/ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a>&#160;<a href="/wiki/Special:BookSources/0-19-860522-6" title="Special:BookSources/0-19-860522-6"><bdi>0-19-860522-6</bdi></a>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=book&amp;rft.btitle=Dictionary+of+Weights%2C+Measures+and+Units&amp;rft.pages=4&amp;rft.pub=Oxford+University+Press&amp;rft.date=2002&amp;rft.isbn=0-19-860522-6&amp;rft.aulast=Fenna&amp;rft.aufirst=Donald&amp;rft_id=https%3A%2F%2Farchive.org%2Fdetails%2Fdictionaryofweig0000fenn&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AAcre" class="Z3988"></span></span> </li> <li id="cite_note-NIST-2"><span class="mw-cite-backlink">^ <a href="#cite_ref-NIST_2-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-NIST_2-1"><sup><i><b>b</b></i></sup></a></span> <span class="reference-text">National Institute of Standards and Technology <a rel="nofollow" class="external text" href="http://ts.nist.gov/WeightsAndMeasures/Publications/upload/h4402_appenc.pdf">(n.d.) General Tables of Units of Measurement</a>. <a rel="nofollow" class="external text" href="https://web.archive.org/web/20061126120208/http://ts.nist.gov/WeightsAndMeasures/Publications/upload/h4402_appenc.pdf">Archived</a> 26 November 2006 at the <a href="/wiki/Wayback_Machine" title="Wayback Machine">Wayback Machine</a>.</span> </li> <li id="cite_note-nottingham-3"><span class="mw-cite-backlink"><b><a href="#cite_ref-nottingham_3-0">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://www.nottingham.ac.uk/manuscriptsandspecialcollections/researchguidance/weightsandmeasures/measurements.aspx">"Manuscripts and Special Collections – Measurements"</a>. the <a href="/wiki/University_of_Nottingham" title="University of Nottingham">University of Nottingham</a><span class="reference-accessdate">. Retrieved <span class="nowrap">1 August</span> 2018</span>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=unknown&amp;rft.btitle=Manuscripts+and+Special+Collections+%E2%80%93+Measurements&amp;rft.pub=the+University+of+Nottingham&amp;rft_id=https%3A%2F%2Fwww.nottingham.ac.uk%2Fmanuscriptsandspecialcollections%2Fresearchguidance%2Fweightsandmeasures%2Fmeasurements.aspx&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AAcre" class="Z3988"></span></span> </li> <li id="cite_note-Klein2012-4"><span class="mw-cite-backlink"><b><a href="#cite_ref-Klein2012_4-0">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFKlein2012" class="citation book cs1">Klein, Herbert Arthur (2012). <a rel="nofollow" class="external text" href="https://books.google.com/books?id=CrmuSiCFyikC&amp;pg=PA76"><i>The Science of Measurement: A Historical Survey</i></a>. Courier Corporation. p.&#160;76. <a href="/wiki/ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a>&#160;<a href="/wiki/Special:BookSources/978-0-486-14497-9" title="Special:BookSources/978-0-486-14497-9"><bdi>978-0-486-14497-9</bdi></a>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=book&amp;rft.btitle=The+Science+of+Measurement%3A+A+Historical+Survey&amp;rft.pages=76&amp;rft.pub=Courier+Corporation&amp;rft.date=2012&amp;rft.isbn=978-0-486-14497-9&amp;rft.aulast=Klein&amp;rft.aufirst=Herbert+Arthur&amp;rft_id=https%3A%2F%2Fbooks.google.com%2Fbooks%3Fid%3DCrmuSiCFyikC%26pg%3DPA76&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AAcre" class="Z3988"></span></span> </li> <li id="cite_note-NBS1959-5"><span class="mw-cite-backlink">^ <a href="#cite_ref-NBS1959_5-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-NBS1959_5-1"><sup><i><b>b</b></i></sup></a></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://archive.today/20200305184155/https://geodesy.noaa.gov/PUBS_LIB/FedRegister/FRdoc59-5442.pdf">"Refinement of Values for the Yard and the Pound"</a> <span class="cs1-format">(PDF)</span>. <i>noaa.gov</i>. 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New Series. <b>56</b> (1449): 337–380. <a href="/wiki/Bibcode_(identifier)" class="mw-redirect" title="Bibcode (identifier)">Bibcode</a>:<a rel="nofollow" class="external text" href="https://ui.adsabs.harvard.edu/abs/1922Sci....56..377M">1922Sci....56..377M</a>. <a href="/wiki/Doi_(identifier)" class="mw-redirect" title="Doi (identifier)">doi</a>:<a rel="nofollow" class="external text" href="https://doi.org/10.1126%2Fscience.56.1449.377">10.1126/science.56.1449.377</a>. <a href="/wiki/ISSN_(identifier)" class="mw-redirect" title="ISSN (identifier)">ISSN</a>&#160;<a rel="nofollow" class="external text" href="https://search.worldcat.org/issn/0036-8075">0036-8075</a>. <a href="/wiki/JSTOR_(identifier)" class="mw-redirect" title="JSTOR (identifier)">JSTOR</a>&#160;<a rel="nofollow" class="external text" href="https://www.jstor.org/stable/1647062">1647062</a>. <a href="/wiki/PMID_(identifier)" class="mw-redirect" title="PMID (identifier)">PMID</a>&#160;<a rel="nofollow" class="external text" href="https://pubmed.ncbi.nlm.nih.gov/17833047">17833047</a><span class="reference-accessdate">. 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Federick, MD: American Congress on Surveying and Mapping. 2021. [The stated maximum allowable "precision" (page 2) is 2&#160;cm and 50 parts per million. An instrument consistently measuring 2&#160;cm short would measure the area of a one international acre square, 63.614907&#160;m on a side, as 4044.3 square metres, 2.6 square metres less than the true value, a far greater discrepancy than the difference between the international and survey acres.]</span> </li> <li id="cite_note-9"><span class="mw-cite-backlink"><b><a href="#cite_ref-9">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://www.ngs.noaa.gov/web/news/us-survey-foot.shtml">"NGS and NIST to Retire U.S. Survey Foot after 2022"</a>. National Geodetic Survey. 31 October 2019<span class="reference-accessdate">. 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The University of North Carolina at Chapel Hill.</span> </li> <li id="cite_note-antiguaobserver-12"><span class="mw-cite-backlink"><b><a href="#cite_ref-antiguaobserver_12-0">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://web.archive.org/web/20131004213313/http://www.antiguaobserver.com/govt-gifts-bakka-with-half-acre-land/">"Gov't Gifts 'Bakka' With Half-Acre Land &#124; Antigua Observer Newspaper"</a>. Archived from <a rel="nofollow" class="external text" href="http://www.antiguaobserver.com/govt-gifts-bakka-with-half-acre-land/">the original</a> on 4 October 2013<span class="reference-accessdate">. Retrieved <span class="nowrap">14 February</span> 2014</span>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=unknown&amp;rft.btitle=Gov%27t+Gifts+%27Bakka%27+With+Half-Acre+Land+%26%23124%3B+Antigua+Observer+Newspaper&amp;rft_id=http%3A%2F%2Fwww.antiguaobserver.com%2Fgovt-gifts-bakka-with-half-acre-land%2F&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AAcre" class="Z3988"></span></span> </li> <li id="cite_note-samoanews-13"><span class="mw-cite-backlink"><b><a href="#cite_ref-samoanews_13-0">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="http://www.samoanews.com/?q=node/4505">"National Park of American Samoa completes two successful forest projects &#124; Samoa News"</a>. SamoaNews.com. 15 April 2012<span class="reference-accessdate">. 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Waddesdon Estate"</a>. <i><a href="/wiki/Waddesdon_Manor" title="Waddesdon Manor">Waddesdon Manor</a></i>. <q>By purchasing the adjoining land, the estate has grown from the original 2,700 acres in 1874 to 6,000 acres in 2011.</q></cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&amp;rft.genre=unknown&amp;rft.jtitle=Waddesdon+Manor&amp;rft.atitle=About+us.+Waddesdon+Estate&amp;rft_id=https%3A%2F%2Fwaddesdon.org.uk%2Fabout-us%2Fwaddesdon-estate%2F&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AAcre" class="Z3988"></span></span> </li> <li id="cite_note-46"><span class="mw-cite-backlink"><b><a href="#cite_ref-46">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://www.savills.co.uk/research_articles/229130/228020-0A">"Outlook and historical context"</a>. <a href="/wiki/Savills" title="Savills">Savills</a>. 12 February 2018.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=unknown&amp;rft.btitle=Outlook+and+historical+context&amp;rft.pub=Savills&amp;rft.date=2018-02-12&amp;rft_id=https%3A%2F%2Fwww.savills.co.uk%2Fresearch_articles%2F229130%2F228020-0A&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AAcre" class="Z3988"></span></span> </li> <li id="cite_note-47"><span class="mw-cite-backlink"><b><a href="#cite_ref-47">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation news cs1"><span class="id-lock-subscription" title="Paid subscription required"><a rel="nofollow" class="external text" href="https://www.ft.com/content/bce30bee-1016-11e8-8cb6-b9ccc4c4dbbb">"Amount of UK farmland put up for sale shrinks as prices fall"</a></span>. <i><a href="/wiki/Financial_Times" title="Financial Times">Financial Times</a></i>. 13 February 2018. <a rel="nofollow" class="external text" href="https://ghostarchive.org/archive/20221210/https://www.ft.com/content/bce30bee-1016-11e8-8cb6-b9ccc4c4dbbb">Archived</a> from the original on 10 December 2022.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&amp;rft.genre=article&amp;rft.jtitle=Financial+Times&amp;rft.atitle=Amount+of+UK+farmland+put+up+for+sale+shrinks+as+prices+fall&amp;rft.date=2018-02-13&amp;rft_id=https%3A%2F%2Fwww.ft.com%2Fcontent%2Fbce30bee-1016-11e8-8cb6-b9ccc4c4dbbb&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AAcre" class="Z3988"></span></span> </li> <li id="cite_note-48"><span class="mw-cite-backlink"><b><a href="#cite_ref-48">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://www.farminguk.com/farmsandlandforsale">"Land for Sale"</a>. <i>farminguk</i>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&amp;rft.genre=unknown&amp;rft.jtitle=farminguk&amp;rft.atitle=Land+for+Sale&amp;rft_id=https%3A%2F%2Fwww.farminguk.com%2Ffarmsandlandforsale&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AAcre" class="Z3988"></span></span> </li> <li id="cite_note-49"><span class="mw-cite-backlink"><b><a href="#cite_ref-49">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation journal cs1">"ed. 842". <i>Farmers' Bulletin</i>. 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Printed by M. Baskett. p.&#160;421<span class="reference-accessdate">. Retrieved <span class="nowrap">12 February</span> 2012</span>. <q>It is ordained that 3 <a href="/wiki/Barleycorn_(unit)" title="Barleycorn (unit)">grains of barley</a> dry and round do make an <a href="/wiki/Inch" title="Inch">inch</a>, 12 inches make 1 <a href="/wiki/Foot_(unit)" title="Foot (unit)">foot</a>, 3 feet make 1 yard, 5 yards and a half make a <a href="/wiki/Perch_(unit)" class="mw-redirect" title="Perch (unit)">perch</a>, and 40 perches in length and 4 in breadth make an acre.</q></cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=book&amp;rft.btitle=Statutes+at+Large&amp;rft.pages=421&amp;rft.pub=Printed+by+M.+Baskett&amp;rft.date=1765&amp;rft.au=Great+Britain&amp;rft.au=Owen+Ruffhead&amp;rft_id=https%3A%2F%2Fbooks.google.com%2Fbooks%3Fid%3DUn1RAAAAYAAJ%26q%3D%2522quod%2520tria%2520grana%2522%26pg%3DPA421&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AAcre" class="Z3988"></span></span> </li> <li id="cite_note-53"><span class="mw-cite-backlink"><b><a href="#cite_ref-53">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation encyclopaedia cs1"><a rel="nofollow" class="external text" href="http://www.oed.com/viewdictionaryentry/Entry/1769">"acre, n."</a>. <i>Oxford English Dictionary</i>. 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Retrieved <span class="nowrap">6 August</span> 2021</span>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&amp;rft.genre=unknown&amp;rft.jtitle=Maximum+Exposure+Real+Estate+web+site&amp;rft.atitle=How+Much+is+an+Acre+of+Land&amp;rft_id=https%3A%2F%2Fwww.maxrealestateexposure.com%2Facre-land%2F&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AAcre" class="Z3988"></span></span> </li> <li id="cite_note-56"><span class="mw-cite-backlink"><b><a href="#cite_ref-56">^</a></b></span> <span class="reference-text">Holland, Robert. (1886). <a rel="nofollow" class="external text" href="https://archive.org/details/glossaryofwordsu16holluoft"><i>A glossary of words used in the County of Chester.</i></a> London: Trübner for the English Dialect Society. p. 3.</span> </li> <li id="cite_note-Malcolm-57"><span class="mw-cite-backlink">^ <a href="#cite_ref-Malcolm_57-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-Malcolm_57-1"><sup><i><b>b</b></i></sup></a></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFMalcolm1999" class="citation book cs1">Malcolm, Noel (1999). <i>Kosovo: A Short History</i>. Harper Perennial. <a href="/wiki/ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a>&#160;<a href="/wiki/Special:BookSources/978-0-06-097775-7" title="Special:BookSources/978-0-06-097775-7"><bdi>978-0-06-097775-7</bdi></a>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=book&amp;rft.btitle=Kosovo%3A+A+Short+History&amp;rft.pub=Harper+Perennial&amp;rft.date=1999&amp;rft.isbn=978-0-06-097775-7&amp;rft.aulast=Malcolm&amp;rft.aufirst=Noel&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AAcre" class="Z3988"></span></span> </li> <li id="cite_note-58"><span class="mw-cite-backlink"><b><a href="#cite_ref-58">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://www.merriam-webster.com/dictionary/God%27s+acre">"Definition of GOD'S ACRE"</a>. <i>www.merriam-webster.com</i>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&amp;rft.genre=unknown&amp;rft.jtitle=www.merriam-webster.com&amp;rft.atitle=Definition+of+GOD%27S+ACRE&amp;rft_id=https%3A%2F%2Fwww.merriam-webster.com%2Fdictionary%2FGod%2527s%2Bacre&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AAcre" class="Z3988"></span></span> </li> <li id="cite_note-59"><span class="mw-cite-backlink"><b><a href="#cite_ref-59">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFElton2013" class="citation web cs1">Elton, Jude (10 December 2013). <a rel="nofollow" class="external text" href="https://adelaidia.history.sa.gov.au/panoramas/lights-plan-of-adelaide-1840">"Light's Plan of Adelaide, 1840"</a>. <i>Adelaidia</i>. <a href="/wiki/History_Trust_of_South_Australia" title="History Trust of South Australia">History Trust of South Australia</a><span class="reference-accessdate">. Retrieved <span class="nowrap">16 January</span> 2021</span>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&amp;rft.genre=unknown&amp;rft.jtitle=Adelaidia&amp;rft.atitle=Light%27s+Plan+of+Adelaide%2C+1840&amp;rft.date=2013-12-10&amp;rft.aulast=Elton&amp;rft.aufirst=Jude&amp;rft_id=https%3A%2F%2Fadelaidia.history.sa.gov.au%2Fpanoramas%2Flights-plan-of-adelaide-1840&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AAcre" class="Z3988"></span></span> </li> <li id="cite_note-60"><span class="mw-cite-backlink"><b><a href="#cite_ref-60">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFLlewellyn-Smith2012" class="citation book cs1">Llewellyn-Smith, Michael (2012). "The Background to the Founding of Adelaide and South Australia in 1836". <a rel="nofollow" class="external text" href="http://www.jstor.org/stable/10.20851/j.ctt1sq5wvd.8."><i>Behind the Scenes: The Politics of Planning Adelaide</i></a>. <a href="/wiki/University_of_Adelaide_Press" title="University of Adelaide Press">University of Adelaide Press</a>. pp.&#160;11–38. <a href="/wiki/ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a>&#160;<a href="/wiki/Special:BookSources/9781922064400" title="Special:BookSources/9781922064400"><bdi>9781922064400</bdi></a>. <a href="/wiki/JSTOR_(identifier)" class="mw-redirect" title="JSTOR (identifier)">JSTOR</a>&#160;<a rel="nofollow" class="external text" href="https://www.jstor.org/stable/10.20851/j.ctt1sq5wvd.8">10.20851/j.ctt1sq5wvd.8</a><span class="reference-accessdate">. Retrieved <span class="nowrap">16 January</span> 2021</span>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=bookitem&amp;rft.atitle=The+Background+to+the+Founding+of+Adelaide+and+South+Australia+in+1836&amp;rft.btitle=Behind+the+Scenes%3A+The+Politics+of+Planning+Adelaide&amp;rft.pages=11-38&amp;rft.pub=University+of+Adelaide+Press&amp;rft.date=2012&amp;rft_id=https%3A%2F%2Fwww.jstor.org%2Fstable%2F10.20851%2Fj.ctt1sq5wvd.8%23id-name%3DJSTOR&amp;rft.isbn=9781922064400&amp;rft.aulast=Llewellyn-Smith&amp;rft.aufirst=Michael&amp;rft_id=http%3A%2F%2Fwww.jstor.org%2Fstable%2F10.20851%2Fj.ctt1sq5wvd.8.&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AAcre" class="Z3988"></span></span> </li> <li id="cite_note-encycnz-61"><span class="mw-cite-backlink"><b><a href="#cite_ref-encycnz_61-0">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFSchrader2015" class="citation web cs1">Schrader, Ben (26 March 2015). <a rel="nofollow" class="external text" href="https://teara.govt.nz/en/city-planning/page-1">"City planning – Early settlement planning"</a>. <i>Te Ara Encyclopedia of New Zealand</i><span class="reference-accessdate">. Retrieved <span class="nowrap">16 January</span> 2021</span>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&amp;rft.genre=unknown&amp;rft.jtitle=Te+Ara+Encyclopedia+of+New+Zealand&amp;rft.atitle=City+planning+%E2%80%93+Early+settlement+planning&amp;rft.date=2015-03-26&amp;rft.aulast=Schrader&amp;rft.aufirst=Ben&amp;rft_id=https%3A%2F%2Fteara.govt.nz%2Fen%2Fcity-planning%2Fpage-1&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AAcre" class="Z3988"></span></span> </li> </ol></div></div> <div class="mw-heading mw-heading2"><h2 id="External_links">External links</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Acre&amp;action=edit&amp;section=14" title="Edit section: External links"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <style data-mw-deduplicate="TemplateStyles:r1235681985">.mw-parser-output .side-box{margin:4px 0;box-sizing:border-box;border:1px solid #aaa;font-size:88%;line-height:1.25em;background-color:var(--background-color-interactive-subtle,#f8f9fa);display:flow-root}.mw-parser-output .side-box-abovebelow,.mw-parser-output .side-box-text{padding:0.25em 0.9em}.mw-parser-output .side-box-image{padding:2px 0 2px 0.9em;text-align:center}.mw-parser-output .side-box-imageright{padding:2px 0.9em 2px 0;text-align:center}@media(min-width:500px){.mw-parser-output .side-box-flex{display:flex;align-items:center}.mw-parser-output .side-box-text{flex:1;min-width:0}}@media(min-width:720px){.mw-parser-output .side-box{width:238px}.mw-parser-output .side-box-right{clear:right;float:right;margin-left:1em}.mw-parser-output .side-box-left{margin-right:1em}}</style><style data-mw-deduplicate="TemplateStyles:r1237033735">@media print{body.ns-0 .mw-parser-output .sistersitebox{display:none!important}}@media screen{html.skin-theme-clientpref-night .mw-parser-output .sistersitebox 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href="/wiki/Comparison_of_the_imperial_and_US_customary_measurement_systems" title="Comparison of the imperial and US customary measurement systems">Comparison with US customary system</a></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Length</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Twip" title="Twip">Twip</a></li> <li><a href="/wiki/Thousandth_of_an_inch" title="Thousandth of an inch">Thousandth of an inch</a></li> <li><a href="/wiki/Barleycorn_(unit)" title="Barleycorn (unit)">Barleycorn</a></li> <li><a href="/wiki/Inch" title="Inch">Inch</a></li> <li><a href="/wiki/Hand_(unit)" title="Hand (unit)">Hand</a></li> <li><a href="/wiki/Link_(unit)" title="Link (unit)">Link</a></li> <li><a href="/wiki/Foot_(unit)" title="Foot (unit)">Foot</a></li> <li><a href="/wiki/Yard" title="Yard">Yard</a></li> <li><a href="/wiki/Fathom" title="Fathom">Fathom</a></li> <li><a href="/wiki/Rod_(unit)" title="Rod (unit)">Rod</a></li> <li><a href="/wiki/Chain_(unit)" title="Chain (unit)">Chain</a></li> <li><a href="/wiki/Gunter%27s_chain" title="Gunter&#39;s chain">Gunter's chain</a></li> <li><a href="/wiki/Furlong" title="Furlong">Furlong</a></li> <li><a href="/wiki/Cable_length" title="Cable length">Cable</a></li> <li><a href="/wiki/Mile" title="Mile">Mile</a></li> <li><a href="/wiki/Nautical_mile" title="Nautical mile">Nautical mile</a></li> <li><a href="/wiki/League_(unit)" title="League (unit)">League</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Area</th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Square_inch" title="Square inch">Square inch</a></li> <li><a href="/wiki/Square_foot" title="Square foot">Square foot</a></li> <li><a href="/wiki/Square_yard" title="Square yard">Square yard</a></li> <li><a href="/wiki/Perch_(area)" class="mw-redirect" title="Perch (area)">Perch</a></li> <li><a href="/wiki/Rood_(unit)" title="Rood (unit)">Rood</a></li> <li><a class="mw-selflink selflink">Acre</a></li> <li><a href="/wiki/Square_mile" title="Square mile">Square mile</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Volume</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:1%">Derived</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Cubic_inch" title="Cubic inch">Cubic inch</a></li> <li><a href="/wiki/Cubic_foot" title="Cubic foot">Cubic foot</a></li> <li><a href="/wiki/Hoppus" title="Hoppus">Hoppus</a></li> <li><a href="/wiki/Cubic_yard" title="Cubic yard">Cubic yard</a></li> <li><a href="/wiki/Cubic_mile" title="Cubic mile">Cubic mile</a></li> <li><a href="/wiki/Tmcft" title="Tmcft">Tmcft</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Cooking</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Teaspoon" title="Teaspoon">Teaspoon</a></li> <li><a href="/wiki/Tablespoon" title="Tablespoon">Tablespoon</a></li> <li><a href="/wiki/Fluid_ounce" title="Fluid ounce">Fluid ounce</a></li> <li><a href="/wiki/Cup_(unit)" title="Cup (unit)">Cup</a></li> <li><a href="/wiki/Pint" title="Pint">Pint</a></li> <li><a href="/wiki/Quart" title="Quart">Quart</a></li> <li><a href="/wiki/Trade_gallon" title="Trade gallon">Trade gallon</a></li> <li><a href="/wiki/Gallon" title="Gallon">Gallon</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Other</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Chaldron" title="Chaldron">Chaldron</a></li> <li><a href="/wiki/Minim_(unit)" title="Minim (unit)">Minim</a></li> <li><a href="/wiki/Gill_(unit)" title="Gill (unit)">Gill</a></li> <li><a href="/wiki/Scruple_(unit)" title="Scruple (unit)">Fluid Scruple</a></li> <li><a href="/wiki/Dram_(unit)" title="Dram (unit)">Fluid Drachm</a></li> <li><a href="/wiki/Peck" title="Peck">Peck</a></li> <li><a href="/wiki/Bushel" title="Bushel">Bushel</a></li> <li><a href="/wiki/Barrel_(unit)" title="Barrel (unit)">Barrel</a></li> <li><a href="/wiki/Stuck_(unit)" title="Stuck (unit)">Stuck</a></li> <li><a href="/wiki/Hogshead" title="Hogshead">Hogshead</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Speed</th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Miles_per_hour" title="Miles per hour">Miles per hour</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Mass</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Grain_(unit)" title="Grain (unit)">Grain</a></li> <li><a href="/wiki/Dram_(unit)" title="Dram (unit)">Drachm</a></li> <li><a href="/wiki/Ounce" title="Ounce">Ounce</a></li> <li><a href="/wiki/Pound_(mass)" title="Pound (mass)">Pound (mass)</a></li> <li><a href="/wiki/Stone_(unit)" title="Stone (unit)">Stone</a></li> <li><a href="/wiki/Quarter_(unit)" title="Quarter (unit)">Quarter</a></li> <li><a href="/wiki/Slug_(unit)" title="Slug (unit)">Slug</a></li> <li><a href="/wiki/Long_hundred" title="Long hundred">Long hundred</a></li> <li><a href="/wiki/Hundredweight" title="Hundredweight">Hundredweight</a></li> <li><a href="/wiki/Ship_load" title="Ship load">Ship load</a></li> <li><a href="/wiki/Long_Ton" class="mw-redirect" title="Long Ton">Ton</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Pressure</th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Ksi_(unit)" class="mw-redirect" title="Ksi (unit)">Ksi</a></li> <li><a href="/wiki/Pounds_per_square_inch" class="mw-redirect" title="Pounds per square inch">Pounds per square inch</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Other units and measures</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/British_thermal_unit" title="British thermal unit">British thermal unit</a></li> <li><a href="/wiki/Degree_(angle)" title="Degree (angle)">Degree</a></li> <li><a href="/wiki/Fahrenheit" title="Fahrenheit">Fahrenheit</a></li> <li><a href="/wiki/Rankine_scale" title="Rankine scale">Rankine</a></li> <li><a href="/wiki/Foot-candle" title="Foot-candle">Foot-candle</a></li> <li><a href="/wiki/Foot-pound_(energy)" title="Foot-pound (energy)">Foot-pound</a></li> <li><a href="/wiki/Foot-poundal" title="Foot-poundal">Foot-poundal</a></li> <li><a href="/wiki/Horsepower" title="Horsepower">Horsepower</a></li> <li><a href="/wiki/Horsepower-hour" title="Horsepower-hour">Horsepower-hour</a></li> <li><a href="/wiki/Kenning_(unit)" class="mw-redirect" title="Kenning (unit)">Kenning</a></li> <li><a href="/wiki/Pound_(force)" title="Pound (force)">Pound (force)</a></li> <li><a href="/wiki/Pound-foot_(torque)" title="Pound-foot (torque)">Pound-foot</a></li> <li><a href="/wiki/Poundal" title="Poundal">Poundal</a></li> <li><a href="/wiki/Span_(unit)" title="Span (unit)">Span</a></li> <li><a href="/wiki/Spinning_count" title="Spinning count">Spinning count</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Related systems</th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Avoirdupois_system" class="mw-redirect" title="Avoirdupois system">Avoirdupois system</a></li> <li><a href="/wiki/English_units" title="English units">English units</a> <ul><li><a href="/wiki/Winchester_measure" title="Winchester measure">Winchester</a></li> <li><a href="/wiki/Exchequer_Standards" title="Exchequer Standards">Exchequer</a></li></ul></li> <li><a href="/wiki/English_Engineering_units" class="mw-redirect" title="English Engineering units">English Engineering units</a></li> <li><a href="/wiki/Foot%E2%80%93pound%E2%80%93second_system" class="mw-redirect" title="Foot–pound–second system">Foot–pound–second system (FPS)</a></li> <li><a href="/wiki/Twenty-foot_equivalent_unit" title="Twenty-foot equivalent unit">Twenty-foot equivalent unit</a></li></ul> </div></td></tr></tbody></table></div> <div class="navbox-styles"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1129693374"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1236075235"></div><div role="navigation" class="navbox" aria-labelledby="United_States_customary_units" style="padding:3px"><table class="nowraplinks mw-collapsible autocollapse navbox-inner" style="border-spacing:0;background:transparent;color:inherit"><tbody><tr><th scope="col" class="navbox-title" colspan="2"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1129693374"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1239400231"><div class="navbar plainlinks hlist navbar-mini"><ul><li class="nv-view"><a href="/wiki/Template:United_States_Customary_Units" title="Template:United States Customary Units"><abbr title="View this template">v</abbr></a></li><li class="nv-talk"><a href="/wiki/Template_talk:United_States_Customary_Units" title="Template talk:United States Customary Units"><abbr title="Discuss this template">t</abbr></a></li><li class="nv-edit"><a href="/wiki/Special:EditPage/Template:United_States_Customary_Units" title="Special:EditPage/Template:United States Customary Units"><abbr title="Edit this template">e</abbr></a></li></ul></div><div id="United_States_customary_units" style="font-size:114%;margin:0 4em"><a href="/wiki/United_States_customary_units" title="United States customary units">United States customary units</a></div></th></tr><tr><td class="navbox-abovebelow" colspan="2"><div><a href="/wiki/Comparison_of_the_imperial_and_US_customary_measurement_systems" title="Comparison of the imperial and US customary measurement systems">Comparison with imperial unit system</a></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Length</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Thousandth_of_an_inch" title="Thousandth of an inch">Thousandth of an inch</a></li> <li><a href="/wiki/Inch" title="Inch">Inch</a></li> <li><a href="/wiki/Hand_(unit)" title="Hand (unit)">Hand</a></li> <li><a href="/wiki/Link_(unit)" title="Link (unit)">Link</a></li> <li><a href="/wiki/Foot_(unit)" title="Foot (unit)">Foot</a></li> <li><a href="/wiki/Yard" title="Yard">Yard</a></li> <li><a href="/wiki/Rod_(unit)" title="Rod (unit)">Rod</a></li> <li><a href="/wiki/Chain_(unit)" title="Chain (unit)">Chain</a></li> <li><a href="/wiki/Furlong" title="Furlong">Furlong</a></li> <li><a href="/wiki/Mile" title="Mile">Mile</a> <ul><li><a href="/wiki/Statute_mile" class="mw-redirect" title="Statute mile">statute</a></li></ul></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Area</th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Square_inch" title="Square inch">Square inch</a></li> <li><a href="/wiki/Square_foot" title="Square foot">Square foot</a></li> <li><a href="/wiki/Square_yard" title="Square yard">Square yard</a></li> <li><a class="mw-selflink selflink">Acre</a></li> <li><a href="/wiki/Square_mile" title="Square mile">Square mile</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Volume</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:1%">Derived</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Cubic_inch" title="Cubic inch">Cubic inch</a></li> <li><a href="/wiki/Cubic_foot" title="Cubic foot">Cubic foot</a></li> <li><a href="/wiki/Cubic_yard" title="Cubic yard">Cubic yard</a></li> <li><a href="/wiki/Cubic_mile" title="Cubic mile">Cubic mile</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Cooking</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Teaspoon" title="Teaspoon">Teaspoon</a></li> <li><a href="/wiki/Tablespoon" title="Tablespoon">Tablespoon</a></li> <li><a href="/wiki/Fluid_ounce" title="Fluid ounce">Fluid ounce</a></li> <li><a href="/wiki/Cup_(unit)" title="Cup (unit)">Cup</a></li> <li><a href="/wiki/Pint" title="Pint">Pint</a></li> <li><a href="/wiki/Quart" title="Quart">Quart</a></li> <li><a href="/wiki/Gallon" title="Gallon">Gallon</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Wood</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Board_foot" title="Board foot">Board foot</a></li> <li><a href="/wiki/Cord_(unit)" title="Cord (unit)">Cord</a></li> <li><a href="/wiki/Face_cord" title="Face cord">Face cord</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Other</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Minim_(unit)" title="Minim (unit)">Minim</a></li> <li><a href="/wiki/Gill_(unit)" title="Gill (unit)">Gill</a></li> <li><a href="/wiki/Peck" title="Peck">Peck</a></li> <li><a href="/wiki/Bushel" title="Bushel">Bushel</a></li> <li><a href="/wiki/Barrel_(unit)" title="Barrel (unit)">Barrel</a></li> <li><a href="/wiki/Acre-foot" title="Acre-foot">Acre-foot</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Speed</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Feet_per_second" class="mw-redirect" title="Feet per second">Feet per second</a></li> <li><a href="/wiki/Miles_per_hour" title="Miles per hour">Miles per hour</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Mass</th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Grain_(unit)" title="Grain (unit)">Grain</a></li> <li><a href="/wiki/Dram_(unit)" title="Dram (unit)">Dram</a></li> <li><a href="/wiki/Ounce" title="Ounce">Ounce</a></li> <li><a href="/wiki/Pound_(mass)" title="Pound (mass)">Pound</a></li> <li><a href="/wiki/Hundredweight" title="Hundredweight">Hundredweight</a></li> <li><a href="/wiki/Ton" title="Ton">Ton</a> <ul><li><a href="/wiki/Long_ton" title="Long ton">Long</a></li> <li><a href="/wiki/Short_ton" title="Short ton">Short</a></li></ul></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Force</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Poundal" title="Poundal">Poundal</a></li> <li><a href="/wiki/Pound_(force)" title="Pound (force)">Pound-force</a></li> <li><a href="/wiki/Kip_(unit)" title="Kip (unit)">Kip</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Pressure</th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Inch_of_mercury" title="Inch of mercury">Inch of mercury</a></li> <li><a href="/wiki/Pounds_per_square_inch" class="mw-redirect" title="Pounds per square inch">Pounds per square inch</a></li> <li><a href="/wiki/Ksi_(unit)" class="mw-redirect" title="Ksi (unit)">Kilopounds per square inch</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Other units and measures</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Bolt_(cloth)" title="Bolt (cloth)">Bolt (cloth)</a></li> <li><a href="/wiki/British_thermal_unit" title="British thermal unit">British thermal unit</a></li> <li><a href="/wiki/Degree_(angle)" title="Degree (angle)">Degree (angle)</a></li> <li><a href="/wiki/Fahrenheit" title="Fahrenheit">Fahrenheit</a></li> <li><a href="/wiki/Foot-candle" title="Foot-candle">Foot-candle</a></li> <li><a href="/wiki/Foot-lambert" title="Foot-lambert">Foot-lambert</a></li> <li><a href="/wiki/Foot-pound_(energy)" title="Foot-pound (energy)">Foot-pound (energy)</a></li> <li><a href="/wiki/Horsepower" title="Horsepower">Horsepower</a></li> <li><a href="/wiki/Perm_(unit)" title="Perm (unit)">Perm</a></li> <li><a href="/wiki/Pound-foot_(torque)" title="Pound-foot (torque)">Pound-foot (torque)</a></li> <li><a href="/wiki/Spinning_count" title="Spinning count">Spinning count</a></li> <li><a href="/wiki/Ton_of_refrigeration" title="Ton of refrigeration">Ton of refrigeration</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Related systems</th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/American_wire_gauge" title="American wire gauge">American wire gauge</a></li> <li><a href="/wiki/Avoirdupois_system" class="mw-redirect" title="Avoirdupois system">Avoirdupois system</a></li> <li><a href="/wiki/Body_jewelry_sizes" title="Body jewelry sizes">Body jewelry sizes</a></li> <li><a href="/wiki/English_Engineering_Units" title="English Engineering Units">English Engineering Units</a></li> <li><a href="/wiki/Foot%E2%80%93pound%E2%80%93second_system_of_units" title="Foot–pound–second system of units">Foot–pound–second system of units</a></li></ul> </div></td></tr></tbody></table></div> <!-- NewPP limit report Parsed by mw‐web.codfw.main‐f69cdc8f6‐bjwd6 Cached time: 20241122141211 Cache expiry: 2592000 Reduced expiry: false Complications: [vary‐revision‐sha1, show‐toc] CPU time usage: 1.435 seconds Real time usage: 1.665 seconds Preprocessor visited node count: 4964/1000000 Post‐expand include size: 152359/2097152 bytes Template argument size: 2741/2097152 bytes Highest expansion depth: 12/100 Expensive parser function count: 7/500 Unstrip recursion depth: 1/20 Unstrip post‐expand size: 217735/5000000 bytes Lua time usage: 0.901/10.000 seconds Lua memory usage: 17999209/52428800 bytes Number of Wikibase entities loaded: 0/400 --> <!-- Transclusion expansion time report (%,ms,calls,template) 100.00% 1449.731 1 -total 36.84% 534.072 2 Template:Reflist 18.62% 269.945 44 Template:Cite_web 15.04% 218.098 34 Template:Lang 10.19% 147.799 4 Template:Navbox 10.02% 145.191 5 Template:Cite_book 9.45% 137.036 1 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