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class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Aeronautical_terms"> <div class="vector-toc-text"> <span class="vector-toc-numb">4.1</span> <span>Aeronautical terms</span> </div> </a> <ul id="toc-Aeronautical_terms-sublist" class="vector-toc-list"> </ul> </li> </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">5</span> <span>See also</span> </div> </a> <ul id="toc-See_also-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">6</span> <span>References</span> </div> </a> <ul id="toc-References-sublist" class="vector-toc-list"> </ul> </li> </ul> </div> </div> </nav> </div> </div> <div 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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">Knot (unit)</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 77 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-77" 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">77 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/Knoop_(snelheid)" title="Knoop (snelheid) – Afrikaans" lang="af" hreflang="af" data-title="Knoop (snelheid)" 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%B9%D9%82%D8%AF%D8%A9_(%D9%88%D8%AD%D8%AF%D8%A9)" title="عقدة (وحدة) – Arabic" lang="ar" hreflang="ar" data-title="عقدة (وحدة)" data-language-autonym="العربية" data-language-local-name="Arabic" class="interlanguage-link-target"><span>العربية</span></a></li><li class="interlanguage-link interwiki-as mw-list-item"><a href="https://as.wikipedia.org/wiki/%E0%A6%A8%E0%A6%9F" title="নট – Assamese" lang="as" hreflang="as" data-title="নট" data-language-autonym="অসমীয়া" data-language-local-name="Assamese" class="interlanguage-link-target"><span>অসমীয়া</span></a></li><li class="interlanguage-link interwiki-ast mw-list-item"><a href="https://ast.wikipedia.org/wiki/Nuedu_(unid%C3%A1)" title="Nuedu (unidá) – Asturian" lang="ast" hreflang="ast" data-title="Nuedu (unidá)" 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/D%C3%BCy%C3%BCn_(%C3%B6l%C3%A7%C3%BC_vahidi)" title="Düyün (ölçü vahidi) – Azerbaijani" lang="az" hreflang="az" data-title="Düyün (ölçü vahidi)" data-language-autonym="Azərbaycanca" data-language-local-name="Azerbaijani" class="interlanguage-link-target"><span>Azərbaycanca</span></a></li><li class="interlanguage-link interwiki-azb mw-list-item"><a href="https://azb.wikipedia.org/wiki/%D8%AF%D9%88%DB%8C%D9%88%D9%86_(%D8%A7%D8%A4%D9%84%DA%86%D9%88_%D8%A8%DB%8C%D8%B1%DB%8C%D9%85%DB%8C)" title="دویون (اؤلچو بیریمی) – South Azerbaijani" lang="azb" hreflang="azb" data-title="دویون (اؤلچو بیریمی)" data-language-autonym="تۆرکجه" data-language-local-name="South Azerbaijani" class="interlanguage-link-target"><span>تۆرکجه</span></a></li><li class="interlanguage-link interwiki-be mw-list-item"><a href="https://be.wikipedia.org/wiki/%D0%92%D1%83%D0%B7%D0%B5%D0%BB_(%D0%B0%D0%B4%D0%B7%D1%96%D0%BD%D0%BA%D0%B0_%D0%B2%D1%8B%D0%BC%D1%8F%D1%80%D1%8D%D0%BD%D0%BD%D1%8F)" title="Вузел (адзінка вымярэння) – Belarusian" lang="be" hreflang="be" data-title="Вузел (адзінка вымярэння)" 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%92%D1%83%D0%B7%D0%B5%D0%BB_(%D0%B0%D0%B4%D0%B7%D1%96%D0%BD%D0%BA%D0%B0_%D0%B2%D1%8B%D0%BC%D1%8F%D1%80%D1%8D%D0%BD%D1%8C%D0%BD%D1%8F)" title="Вузел (адзінка вымярэньня) – Belarusian (Taraškievica orthography)" lang="be-tarask" hreflang="be-tarask" data-title="Вузел (адзінка вымярэньня)" 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%92%D1%8A%D0%B7%D0%B5%D0%BB_(%D1%81%D0%BA%D0%BE%D1%80%D0%BE%D1%81%D1%82)" title="Възел (скорост) – Bulgarian" lang="bg" hreflang="bg" data-title="Възел (скорост)" data-language-autonym="Български" data-language-local-name="Bulgarian" class="interlanguage-link-target"><span>Български</span></a></li><li class="interlanguage-link interwiki-bar mw-list-item"><a href="https://bar.wikipedia.org/wiki/Knupf_(Oaheid)" title="Knupf (Oaheid) – Bavarian" lang="bar" hreflang="bar" data-title="Knupf (Oaheid)" data-language-autonym="Boarisch" data-language-local-name="Bavarian" class="interlanguage-link-target"><span>Boarisch</span></a></li><li class="interlanguage-link interwiki-bo mw-list-item"><a href="https://bo.wikipedia.org/wiki/%E0%BD%9A%E0%BD%B2%E0%BD%82%E0%BD%A6%E0%BC%8D" title="ཚིགས། – Tibetan" lang="bo" hreflang="bo" data-title="ཚིགས།" data-language-autonym="བོད་ཡིག" data-language-local-name="Tibetan" class="interlanguage-link-target"><span>བོད་ཡིག</span></a></li><li class="interlanguage-link interwiki-br mw-list-item"><a href="https://br.wikipedia.org/wiki/Skoulm_(unanenn)" title="Skoulm (unanenn) – Breton" lang="br" hreflang="br" data-title="Skoulm (unanenn)" 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/Nus_(unitat)" title="Nus (unitat) – Catalan" lang="ca" hreflang="ca" data-title="Nus (unitat)" data-language-autonym="Català" data-language-local-name="Catalan" class="interlanguage-link-target"><span>Català</span></a></li><li class="interlanguage-link interwiki-cv mw-list-item"><a href="https://cv.wikipedia.org/wiki/%D0%A2%C4%95%D0%B2%C4%95_(%D0%B2%D0%B8%C3%A7%D0%B5%D0%B2_%D0%BF%C4%95%D1%80%D1%87%D0%B8)" title="Тĕвĕ (виçев пĕрчи) – Chuvash" lang="cv" hreflang="cv" data-title="Тĕвĕ (виçев пĕрчи)" data-language-autonym="Чӑвашла" data-language-local-name="Chuvash" class="interlanguage-link-target"><span>Чӑвашла</span></a></li><li class="interlanguage-link interwiki-cs mw-list-item"><a href="https://cs.wikipedia.org/wiki/Uzel_(jednotka)" title="Uzel (jednotka) – Czech" lang="cs" hreflang="cs" data-title="Uzel (jednotka)" data-language-autonym="Čeština" data-language-local-name="Czech" class="interlanguage-link-target"><span>Čeština</span></a></li><li class="interlanguage-link interwiki-da mw-list-item"><a href="https://da.wikipedia.org/wiki/Knob_(fart)" title="Knob (fart) – Danish" lang="da" hreflang="da" data-title="Knob (fart)" 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/Knoten_(Einheit)" title="Knoten (Einheit) – German" lang="de" hreflang="de" data-title="Knoten (Einheit)" 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/S%C3%B5lm_(kiirus%C3%BChik)" title="Sõlm (kiirusühik) – Estonian" lang="et" hreflang="et" data-title="Sõlm (kiirusühik)" 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%9A%CF%8C%CE%BC%CE%B2%CE%BF%CF%82" title="Κόμβος – Greek" lang="el" hreflang="el" data-title="Κόμβος" 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/Nudo_(unidad)" title="Nudo (unidad) – Spanish" lang="es" hreflang="es" data-title="Nudo (unidad)" 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/Knoto" title="Knoto – Esperanto" lang="eo" hreflang="eo" data-title="Knoto" 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/Korapilo_(abiadura_unitatea)" title="Korapilo (abiadura unitatea) – Basque" lang="eu" hreflang="eu" data-title="Korapilo (abiadura unitatea)" 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/%DA%AF%D8%B1%D9%87_(%DB%8C%DA%A9%D8%A7%DB%8C_%D8%B3%D8%B1%D8%B9%D8%AA)" title="گره (یکای سرعت) – Persian" lang="fa" hreflang="fa" data-title="گره (یکای سرعت)" 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/N%C5%93ud_(unit%C3%A9)" title="Nœud (unité) – French" lang="fr" hreflang="fr" data-title="Nœud (unité)" data-language-autonym="Français" data-language-local-name="French" class="interlanguage-link-target"><span>Français</span></a></li><li class="interlanguage-link interwiki-ga mw-list-item"><a href="https://ga.wikipedia.org/wiki/Muirmh%C3%ADle" title="Muirmhíle – Irish" lang="ga" hreflang="ga" data-title="Muirmhíle" data-language-autonym="Gaeilge" data-language-local-name="Irish" class="interlanguage-link-target"><span>Gaeilge</span></a></li><li class="interlanguage-link interwiki-gl mw-list-item"><a href="https://gl.wikipedia.org/wiki/N%C3%B3_(n%C3%A1utica)" title="Nó (náutica) – Galician" lang="gl" hreflang="gl" data-title="Nó (náutica)" 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/%EB%85%B8%ED%8A%B8_(%EB%8B%A8%EC%9C%84)" title="노트 (단위) – Korean" lang="ko" hreflang="ko" data-title="노트 (단위)" 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/%D5%80%D5%A1%D5%B6%D5%A3%D5%B8%D6%82%D5%B5%D6%81_(%D5%B9%D5%A1%D6%83%D5%B4%D5%A1%D5%B6_%D5%B4%D5%AB%D5%A1%D5%BE%D5%B8%D6%80)" title="Հանգույց (չափման միավոր) – Armenian" lang="hy" hreflang="hy" data-title="Հանգույց (չափման միավոր)" 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%A8%E0%A5%89%E0%A4%9F_(%E0%A4%87%E0%A4%95%E0%A4%BE%E0%A4%88)" title="नॉट (इकाई) – Hindi" lang="hi" hreflang="hi" data-title="नॉट (इकाई)" 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/%C4%8Cvor" title="Čvor – Croatian" lang="hr" hreflang="hr" data-title="Čvor" data-language-autonym="Hrvatski" data-language-local-name="Croatian" class="interlanguage-link-target"><span>Hrvatski</span></a></li><li class="interlanguage-link interwiki-id mw-list-item"><a href="https://id.wikipedia.org/wiki/Knot_(satuan)" title="Knot (satuan) – Indonesian" lang="id" hreflang="id" data-title="Knot (satuan)" 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-is mw-list-item"><a href="https://is.wikipedia.org/wiki/Hn%C3%BAtur_(m%C3%A6lieining)" title="Hnútur (mælieining) – Icelandic" lang="is" hreflang="is" data-title="Hnútur (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/Nodo_(unit%C3%A0_di_misura)" title="Nodo (unità di misura) – Italian" lang="it" hreflang="it" data-title="Nodo (unità di misura)" 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%A7%D7%A9%D7%A8_(%D7%99%D7%97%D7%99%D7%93%D7%AA_%D7%9E%D7%99%D7%93%D7%94)" title="קשר (יחידת מידה) – Hebrew" lang="he" hreflang="he" data-title="קשר (יחידת מידה)" data-language-autonym="עברית" data-language-local-name="Hebrew" class="interlanguage-link-target"><span>עברית</span></a></li><li class="interlanguage-link interwiki-ka mw-list-item"><a href="https://ka.wikipedia.org/wiki/%E1%83%99%E1%83%95%E1%83%90%E1%83%9C%E1%83%AB%E1%83%98_(%E1%83%9C%E1%83%90%E1%83%95%E1%83%98%E1%83%92%E1%83%90%E1%83%AA%E1%83%98%E1%83%90)" title="კვანძი (ნავიგაცია) – Georgian" lang="ka" hreflang="ka" data-title="კვანძი (ნავიგაცია)" 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%A2%D2%AF%D0%B9%D1%96%D0%BD_(%D3%A9%D0%BB%D1%88%D0%B5%D0%BC_%D0%B1%D1%96%D1%80%D0%BB%D1%96%D0%B3%D1%96)" title="Түйін (өлшем бірлігі) – Kazakh" lang="kk" hreflang="kk" data-title="Түйін (өлшем бірлігі)" 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/Noti_(kizio)" title="Noti (kizio) – Swahili" lang="sw" hreflang="sw" data-title="Noti (kizio)" data-language-autonym="Kiswahili" data-language-local-name="Swahili" class="interlanguage-link-target"><span>Kiswahili</span></a></li><li class="interlanguage-link interwiki-lv mw-list-item"><a href="https://lv.wikipedia.org/wiki/Mezgls_(%C4%81truma_m%C4%93rvien%C4%ABba)" title="Mezgls (ātruma mērvienība) – Latvian" lang="lv" hreflang="lv" data-title="Mezgls (ātruma mērvienība)" data-language-autonym="Latviešu" data-language-local-name="Latvian" class="interlanguage-link-target"><span>Latviešu</span></a></li><li class="interlanguage-link interwiki-lb mw-list-item"><a href="https://lb.wikipedia.org/wiki/Knuet_(Nautik)" title="Knuet (Nautik) – Luxembourgish" lang="lb" hreflang="lb" data-title="Knuet (Nautik)" data-language-autonym="Lëtzebuergesch" data-language-local-name="Luxembourgish" class="interlanguage-link-target"><span>Lëtzebuergesch</span></a></li><li class="interlanguage-link interwiki-lt mw-list-item"><a href="https://lt.wikipedia.org/wiki/Mazgas_(matas)" title="Mazgas (matas) – Lithuanian" lang="lt" hreflang="lt" data-title="Mazgas (matas)" data-language-autonym="Lietuvių" data-language-local-name="Lithuanian" class="interlanguage-link-target"><span>Lietuvių</span></a></li><li class="interlanguage-link interwiki-lmo mw-list-item"><a href="https://lmo.wikipedia.org/wiki/Noeud_(unitaa_de_misura)" title="Noeud (unitaa de misura) – Lombard" lang="lmo" hreflang="lmo" data-title="Noeud (unitaa de misura)" data-language-autonym="Lombard" data-language-local-name="Lombard" class="interlanguage-link-target"><span>Lombard</span></a></li><li class="interlanguage-link interwiki-mk mw-list-item"><a href="https://mk.wikipedia.org/wiki/%D0%88%D0%B0%D0%B7%D0%BE%D0%BB_(%D0%B5%D0%B4%D0%B8%D0%BD%D0%B8%D1%86%D0%B0)" title="Јазол (единица) – Macedonian" lang="mk" hreflang="mk" data-title="Јазол (единица)" data-language-autonym="Македонски" data-language-local-name="Macedonian" class="interlanguage-link-target"><span>Македонски</span></a></li><li class="interlanguage-link interwiki-mr mw-list-item"><a href="https://mr.wikipedia.org/wiki/%E0%A4%A8%E0%A5%89%E0%A4%9F_(%E0%A4%8F%E0%A4%95%E0%A4%95)" title="नॉट (एकक) – Marathi" lang="mr" hreflang="mr" data-title="नॉट (एकक)" 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/Knot" title="Knot – Malay" lang="ms" hreflang="ms" data-title="Knot" 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-min mw-list-item"><a href="https://min.wikipedia.org/wiki/Knot_(satuan)" title="Knot (satuan) – Minangkabau" lang="min" hreflang="min" data-title="Knot (satuan)" data-language-autonym="Minangkabau" data-language-local-name="Minangkabau" class="interlanguage-link-target"><span>Minangkabau</span></a></li><li class="interlanguage-link interwiki-nl mw-list-item"><a href="https://nl.wikipedia.org/wiki/Knoop_(snelheid)" title="Knoop (snelheid) – Dutch" lang="nl" hreflang="nl" data-title="Knoop (snelheid)" 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%83%8E%E3%83%83%E3%83%88" title="ノット – Japanese" lang="ja" hreflang="ja" data-title="ノット" 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-frr badge-Q70894304 mw-list-item" title=""><a href="https://frr.wikipedia.org/wiki/Knoot" title="Knoot – Northern Frisian" lang="frr" hreflang="frr" data-title="Knoot" data-language-autonym="Nordfriisk" data-language-local-name="Northern Frisian" class="interlanguage-link-target"><span>Nordfriisk</span></a></li><li class="interlanguage-link interwiki-no mw-list-item"><a href="https://no.wikipedia.org/wiki/Knop_(m%C3%A5l)" title="Knop (mål) – Norwegian Bokmål" lang="nb" hreflang="nb" data-title="Knop (mål)" 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/Knop" title="Knop – Norwegian Nynorsk" lang="nn" hreflang="nn" data-title="Knop" 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 mw-list-item"><a href="https://oc.wikipedia.org/wiki/Nos_(unitat)" title="Nos (unitat) – Occitan" lang="oc" hreflang="oc" data-title="Nos (unitat)" data-language-autonym="Occitan" data-language-local-name="Occitan" class="interlanguage-link-target"><span>Occitan</span></a></li><li class="interlanguage-link interwiki-pa mw-list-item"><a href="https://pa.wikipedia.org/wiki/%E0%A8%A8%E0%A9%8C%E0%A8%9F_(%E0%A8%87%E0%A8%95%E0%A8%BE%E0%A8%88)" title="ਨੌਟ (ਇਕਾਈ) – Punjabi" lang="pa" hreflang="pa" data-title="ਨੌਟ (ਇਕਾਈ)" data-language-autonym="ਪੰਜਾਬੀ" data-language-local-name="Punjabi" class="interlanguage-link-target"><span>ਪੰਜਾਬੀ</span></a></li><li class="interlanguage-link interwiki-km mw-list-item"><a href="https://km.wikipedia.org/wiki/%E1%9E%8E%E1%9E%BB%E1%9E%8F" title="ណុត – Khmer" lang="km" hreflang="km" data-title="ណុត" data-language-autonym="ភាសាខ្មែរ" data-language-local-name="Khmer" class="interlanguage-link-target"><span>ភាសាខ្មែរ</span></a></li><li class="interlanguage-link interwiki-pms mw-list-item"><a href="https://pms.wikipedia.org/wiki/Neu" title="Neu – Piedmontese" lang="pms" hreflang="pms" data-title="Neu" data-language-autonym="Piemontèis" data-language-local-name="Piedmontese" class="interlanguage-link-target"><span>Piemontèis</span></a></li><li class="interlanguage-link interwiki-pl mw-list-item"><a href="https://pl.wikipedia.org/wiki/W%C4%99ze%C5%82_(jednostka_pr%C4%99dko%C5%9Bci)" title="Węzeł (jednostka prędkości) – Polish" lang="pl" hreflang="pl" data-title="Węzeł (jednostka prędkości)" 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/N%C3%B3_(unidade)" title="Nó (unidade) – Portuguese" lang="pt" hreflang="pt" data-title="Nó (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/Nod_(unitate_de_m%C4%83sur%C4%83)" title="Nod (unitate de măsură) – Romanian" lang="ro" hreflang="ro" data-title="Nod (unitate de măsură)" 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%A3%D0%B7%D0%B5%D0%BB_(%D0%B5%D0%B4%D0%B8%D0%BD%D0%B8%D1%86%D0%B0_%D0%B8%D0%B7%D0%BC%D0%B5%D1%80%D0%B5%D0%BD%D0%B8%D1%8F)" title="Узел (единица измерения) – Russian" lang="ru" hreflang="ru" data-title="Узел (единица измерения)" 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/Knot_(unit)" title="Knot (unit) – Scots" lang="sco" hreflang="sco" data-title="Knot (unit)" data-language-autonym="Scots" data-language-local-name="Scots" class="interlanguage-link-target"><span>Scots</span></a></li><li class="interlanguage-link interwiki-sq mw-list-item"><a href="https://sq.wikipedia.org/wiki/Nyja" title="Nyja – Albanian" lang="sq" hreflang="sq" data-title="Nyja" data-language-autonym="Shqip" data-language-local-name="Albanian" class="interlanguage-link-target"><span>Shqip</span></a></li><li class="interlanguage-link interwiki-scn mw-list-item"><a href="https://scn.wikipedia.org/wiki/Ruppu_(unitati_di_misura)" title="Ruppu (unitati di misura) – Sicilian" lang="scn" hreflang="scn" data-title="Ruppu (unitati di misura)" data-language-autonym="Sicilianu" data-language-local-name="Sicilian" class="interlanguage-link-target"><span>Sicilianu</span></a></li><li class="interlanguage-link interwiki-simple mw-list-item"><a href="https://simple.wikipedia.org/wiki/Knot_(speed)" title="Knot (speed) – Simple English" lang="en-simple" hreflang="en-simple" data-title="Knot (speed)" 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/%D9%86%D8%A7%D9%BD" title="ناٽ – Sindhi" lang="sd" hreflang="sd" data-title="ناٽ" 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/N%C3%A1morn%C3%BD_uzol" title="Námorný uzol – Slovak" lang="sk" hreflang="sk" data-title="Námorný uzol" 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/Vozel_(enota)" title="Vozel (enota) – Slovenian" lang="sl" hreflang="sl" data-title="Vozel (enota)" 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/%D0%A7%D0%B2%D0%BE%D1%80_(%D0%B1%D1%80%D0%B7%D0%B8%D0%BD%D0%B0)" title="Чвор (брзина) – Serbian" lang="sr" hreflang="sr" data-title="Чвор (брзина)" 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/%C4%8Cvor_(mjerna_jedinica)" title="Čvor (mjerna jedinica) – Serbo-Croatian" lang="sh" hreflang="sh" data-title="Čvor (mjerna jedinica)" 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/Solmu_(nopeusyksikk%C3%B6)" title="Solmu (nopeusyksikkö) – Finnish" lang="fi" hreflang="fi" data-title="Solmu (nopeusyksikkö)" 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/Knop_(enhet)" title="Knop (enhet) – Swedish" lang="sv" hreflang="sv" data-title="Knop (enhet)" data-language-autonym="Svenska" data-language-local-name="Swedish" class="interlanguage-link-target"><span>Svenska</span></a></li><li class="interlanguage-link interwiki-th mw-list-item"><a href="https://th.wikipedia.org/wiki/%E0%B8%99%E0%B8%AD%E0%B8%95" title="นอต – Thai" lang="th" hreflang="th" data-title="นอต" 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/Knot" title="Knot – Turkish" lang="tr" hreflang="tr" data-title="Knot" data-language-autonym="Türkçe" data-language-local-name="Turkish" class="interlanguage-link-target"><span>Türkçe</span></a></li><li class="interlanguage-link interwiki-uk mw-list-item"><a href="https://uk.wikipedia.org/wiki/%D0%92%D1%83%D0%B7%D0%BE%D0%BB_(%D0%BE%D0%B4%D0%B8%D0%BD%D0%B8%D1%86%D1%8F_%D1%88%D0%B2%D0%B8%D0%B4%D0%BA%D0%BE%D1%81%D1%82%D1%96)" title="Вузол (одиниця швидкості) – Ukrainian" lang="uk" hreflang="uk" data-title="Вузол (одиниця швидкості)" data-language-autonym="Українська" data-language-local-name="Ukrainian" class="interlanguage-link-target"><span>Українська</span></a></li><li class="interlanguage-link interwiki-vi mw-list-item"><a href="https://vi.wikipedia.org/wiki/N%C3%BAt_(%C4%91%C6%A1n_v%E1%BB%8B)" title="Nút (đơn vị) – Vietnamese" lang="vi" hreflang="vi" data-title="Nút (đơn vị)" 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-war mw-list-item"><a href="https://war.wikipedia.org/wiki/Nudo" title="Nudo – Waray" lang="war" hreflang="war" data-title="Nudo" 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%8A%82%EF%BC%88%E5%8D%95%E4%BD%8D%EF%BC%89" title="节（单位） – Wu" lang="wuu" hreflang="wuu" data-title="节（单位）" 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/%E7%AF%80_(%E5%96%AE%E4%BD%8D)" title="節 (單位) – Cantonese" lang="yue" hreflang="yue" data-title="節 (單位)" data-language-autonym="粵語" data-language-local-name="Cantonese" class="interlanguage-link-target"><span>粵語</span></a></li><li class="interlanguage-link interwiki-zh mw-list-item"><a href="https://zh.wikipedia.org/wiki/%E7%AF%80_(%E5%96%AE%E4%BD%8D)" title="節 (單位) – Chinese" lang="zh" hreflang="zh" data-title="節 (單位)" data-language-autonym="中文" data-language-local-name="Chinese" class="interlanguage-link-target"><span>中文</span></a></li> </ul> <div class="after-portlet after-portlet-lang"><span class="wb-langlinks-edit wb-langlinks-link"><a href="https://www.wikidata.org/wiki/Special:EntityPage/Q128822#sitelinks-wikipedia" title="Edit interlanguage links" class="wbc-editpage">Edit links</a></span></div> </div> </div> </div> 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.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">knot</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:Airspeed_Indicator.svg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/1/15/Airspeed_Indicator.svg/220px-Airspeed_Indicator.svg.png" decoding="async" width="220" height="220" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/1/15/Airspeed_Indicator.svg/330px-Airspeed_Indicator.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/1/15/Airspeed_Indicator.svg/440px-Airspeed_Indicator.svg.png 2x" data-file-width="512" data-file-height="512" /></a></span><div class="infobox-caption">An <a href="/wiki/Airspeed_indicator" title="Airspeed indicator">airspeed indicator</a>, which shows speed in knots</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"><style data-mw-deduplicate="TemplateStyles:r1126788409">.mw-parser-output .plainlist ol,.mw-parser-output .plainlist ul{line-height:inherit;list-style:none;margin:0;padding:0}.mw-parser-output .plainlist ol li,.mw-parser-output .plainlist ul li{margin-bottom:0}</style><div class="plainlist"><ul><li>meteorology</li><li>aviation</li><li>maritime</li></ul></div></td></tr><tr><th scope="row" class="infobox-label">Unit of</th><td class="infobox-data"><a href="/wiki/Speed" title="Speed">speed</a></td></tr><tr><th scope="row" class="infobox-label">Symbol</th><td class="infobox-data">kn, kt</td></tr><tr><th colspan="2" class="infobox-header">Conversions </th></tr><tr class="nowrap"><td>1 kn <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">   </span><a href="/wiki/Kilometres_per_hour" title="Kilometres per hour">km/h</a></th><td class="infobox-data"><span class="nowrap">   </span>1.852</td></tr><tr><th scope="row" class="infobox-label"><span class="nowrap">   </span><a href="/wiki/Miles_per_hour" title="Miles per hour">mph</a></th><td class="infobox-data"><span class="nowrap">   </span>1.15078</td></tr><tr><th scope="row" class="infobox-label"><span class="nowrap">   </span><a href="/wiki/Metre_per_second" title="Metre per second">m/s</a></th><td class="infobox-data"><span class="nowrap">   </span>0.514444</td></tr><tr><th scope="row" class="infobox-label"><span class="nowrap">   </span><a href="/wiki/Foot_per_second" title="Foot per second">ft/s</a></th><td class="infobox-data"><span class="nowrap">   </span>1.68781</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> <p>The <b>knot</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="'n' in 'nigh'">n</span><span title="/ɒ/: 'o' in 'body'">ɒ</span><span title="'t' in 'tie'">t</span></span>/</a></span></span>) is a unit of <a href="/wiki/Speed" title="Speed">speed</a> equal to one <a href="/wiki/Nautical_mile" title="Nautical mile">nautical mile</a> per hour, exactly <span class="nowrap"><span data-sort-value="6999514444444444444♠"></span>1.852 km/h</span> (approximately <span class="nowrap"><span data-sort-value="6999514543039999999♠"></span>1.151 mph</span> or <span class="nowrap"><span data-sort-value="6999514000000000000♠"></span>0.514 m/s</span>).<sup id="cite_ref-1" class="reference"><a href="#cite_note-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-2" class="reference"><a href="#cite_note-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup> The <a href="/wiki/ISO_80000-3" class="mw-redirect" title="ISO 80000-3">ISO standard</a> symbol for the knot is <b>kn</b>.<sup id="cite_ref-3" class="reference"><a href="#cite_note-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup> The same symbol is preferred by the <a href="/wiki/IEEE" class="mw-redirect" title="IEEE">Institute of Electrical and Electronics Engineers</a> (<a href="/wiki/IEEE" class="mw-redirect" title="IEEE">IEEE</a>), while <b>kt</b> is also common, especially in aviation, where it is the form recommended by the <a href="/wiki/ICAO" class="mw-redirect" title="ICAO">International Civil Aviation Organization</a> (<a href="/wiki/ICAO" class="mw-redirect" title="ICAO">ICAO</a>).<sup id="cite_ref-4" class="reference"><a href="#cite_note-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> The knot is a non-<a href="/wiki/International_System_of_Units" title="International System of Units">SI</a> unit.<sup id="cite_ref-nonSi_5-0" class="reference"><a href="#cite_note-nonSi-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup> The knot is used in <a href="/wiki/Meteorology" title="Meteorology">meteorology</a>, and in <a href="/wiki/Maritime_transport" title="Maritime transport">maritime</a> and <a href="/wiki/Aviation" title="Aviation">air</a> navigation. A vessel travelling at 1 knot along a <a href="/wiki/Meridian_(geography)" title="Meridian (geography)">meridian</a> travels approximately one <a href="/wiki/Minute_of_arc" class="mw-redirect" title="Minute of arc">minute</a> of geographic <a href="/wiki/Latitude" title="Latitude">latitude</a> in one hour. </p> <meta property="mw:PageProp/toc" /> <div class="mw-heading mw-heading2"><h2 id="Definitions">Definitions</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Knot_(unit)&action=edit&section=1" title="Edit section: Definitions"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <dl><dt>1 international knot =</dt> <dd>1 <a href="/wiki/Nautical_mile" title="Nautical mile">nautical mile</a> per <a href="/wiki/Hour" title="Hour">hour</a> (by definition),</dd> <dd><span style="white-space: nowrap">1<span style="margin-left: 0.25em">852.000</span></span> metres per hour (exactly),<sup id="cite_ref-nonSi_5-1" class="reference"><a href="#cite_note-nonSi-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup></dd> <dd>0.51444 metres per second (approximately),</dd> <dd>1.15078 miles per hour (approximately),</dd> <dd>20.25372 inches per second (approximately)</dd> <dd>1.68781 feet per second (approximately).</dd></dl> <p>The length of the internationally agreed nautical mile is <span class="nowrap"><span data-sort-value="7003185200000000000♠"></span>1<span style="margin-left:.25em;">852</span> m</span>. The US adopted the international definition in 1954, having previously used the US nautical mile (<span class="nowrap"><span data-sort-value="7003185324800000000♠"></span>1<span style="margin-left:.25em;">853</span>.248 m</span>).<sup id="cite_ref-usnm_6-0" class="reference"><a href="#cite_note-usnm-6"><span class="cite-bracket">[</span>6<span class="cite-bracket">]</span></a></sup> The UK adopted the international nautical mile definition in 1970, having previously used the UK <a href="/wiki/British_Admiralty" class="mw-redirect" title="British Admiralty">Admiralty</a> nautical mile (<span class="nowrap"><span data-sort-value="7003185318400000000♠"></span>6<span style="margin-left:.25em;">080</span> ft</span> or <span class="nowrap"><span data-sort-value="7003185318400000000♠"></span>1<span style="margin-left:.25em;">853</span>.184 m</span>). </p> <table class="wikitable"> <caption><span class="nowrap">Conversions between common units of speed</span> </caption> <tbody><tr> <th></th> <th><a href="/wiki/Metre_per_second" title="Metre per second">m/s</a></th> <th><a href="/wiki/Kilometres_per_hour" title="Kilometres per hour">km/h</a></th> <th><a href="/wiki/Miles_per_hour" title="Miles per hour">mph (mi/h)</a></th> <th><a class="mw-selflink selflink">knot</a></th> <th><a href="/wiki/Foot_per_second" title="Foot per second">fps (ft/s)</a> </th></tr> <tr> <th>1 <a href="/wiki/Metre_per_second" title="Metre per second">m/s</a> = </th> <td>1</td> <td><span style="white-space: nowrap">3.600<span style="margin-left: 0.25em">000</span></span></td> <td><span style="white-space: nowrap">2.236<span style="margin-left: 0.25em">936</span></span>*</td> <td><span style="white-space: nowrap">1.943<span style="margin-left: 0.25em">844</span></span>*</td> <td><span style="white-space: nowrap">3.280<span style="margin-left: 0.25em">840</span></span>* </td></tr> <tr> <th>1 <a href="/wiki/Kilometres_per_hour" title="Kilometres per hour">km/h</a> = </th> <td><span class="nowrap"><span data-sort-value="6999277778000000000♠"></span>0.277<span style="margin-left:.25em;">778</span></span>*</td> <td>1</td> <td><span class="nowrap"><span data-sort-value="6999621371000000000♠"></span>0.621<span style="margin-left:.25em;">371</span></span>*</td> <td><span class="nowrap"><span data-sort-value="6999539957000000000♠"></span>0.539<span style="margin-left:.25em;">957</span></span>*</td> <td><span class="nowrap"><span data-sort-value="6999911344000000000♠"></span>0.911<span style="margin-left:.25em;">344</span></span>* </td></tr> <tr> <th>1 <a href="/wiki/Miles_per_hour" title="Miles per hour">mph (mi/h)</a> = </th> <td><span class="nowrap"><span data-sort-value="6999447040000000000♠"></span>0.447<span style="margin-left:.25em;">04</span></span></td> <td><span class="nowrap"><span data-sort-value="7000160934400000000♠"></span>1.609<span style="margin-left:.25em;">344</span></span></td> <td>1</td> <td><span class="nowrap"><span data-sort-value="6999868976000000000♠"></span>0.868<span style="margin-left:.25em;">976</span></span>*</td> <td><span class="nowrap"><span data-sort-value="7000146666700000000♠"></span>1.466<span style="margin-left:.25em;">667</span></span>* </td></tr> <tr> <th>1 <a class="mw-selflink selflink">knot</a> = </th> <td><span class="nowrap"><span data-sort-value="6999514444000000000♠"></span>0.514<span style="margin-left:.25em;">444</span></span>*</td> <td>1.852</td> <td><span class="nowrap"><span data-sort-value="7000115077900000000♠"></span>1.150<span style="margin-left:.25em;">779</span></span>*</td> <td>1</td> <td><span class="nowrap"><span data-sort-value="7000168781000000000♠"></span>1.687<span style="margin-left:.25em;">810</span></span>* </td></tr> <tr> <th>1 <a href="/wiki/Foot_per_second" title="Foot per second">fps (ft/s)</a> = </th> <td><span class="nowrap"><span data-sort-value="6999304800000000000♠"></span>0.3048</span></td> <td><span class="nowrap"><span data-sort-value="7000109728000000000♠"></span>1.097<span style="margin-left:.25em;">28</span></span></td> <td><span class="nowrap"><span data-sort-value="6999681818000000000♠"></span>0.681<span style="margin-left:.25em;">818</span></span>*</td> <td><span class="nowrap"><span data-sort-value="6999592484000000000♠"></span>0.592<span style="margin-left:.25em;">484</span></span>*</td> <td>1 </td></tr></tbody></table><p> (* = approximate values) </p><div class="mw-heading mw-heading2"><h2 id="Usage">Usage</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Knot_(unit)&action=edit&section=2" title="Edit section: Usage"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>The speeds of vessels relative to the <a href="/wiki/Fluid" title="Fluid">fluids</a> in which they travel (boat speeds and <a href="/wiki/Air_speed" class="mw-redirect" title="Air speed">air speeds</a>) can be measured in knots. If so, for consistency, the speeds of navigational fluids (<a href="/wiki/Ocean_current" title="Ocean current">ocean currents</a>, <a href="/wiki/Tidal_stream_(marine_science)" class="mw-redirect" title="Tidal stream (marine science)">tidal streams</a>, <a href="/wiki/River_current" class="mw-redirect" title="River current">river currents</a> and <a href="/wiki/Wind_speed" title="Wind speed">wind speeds</a>) are also measured in knots. Thus, speed over the ground (SOG; <a href="/wiki/Ground_speed" title="Ground speed">ground speed</a> (GS) in aircraft) and rate of progress towards a distant point ("<a href="/wiki/Velocity_made_good" title="Velocity made good">velocity made good</a>", VMG) can also be given in knots. Since 1979, the <a href="/wiki/International_Civil_Aviation_Organization" title="International Civil Aviation Organization">International Civil Aviation Organization</a> list the knot as permitted for temporary use in aviation, but no end date to the temporary period has been agreed as of 2024<sup class="plainlinks noexcerpt noprint asof-tag update" style="display:none;"><a class="external text" href="https://en.wikipedia.org/w/index.php?title=Knot_(unit)&action=edit">[update]</a></sup>.<sup id="cite_ref-7" class="reference"><a href="#cite_note-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="Origin">Origin</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Knot_(unit)&action=edit&section=3" title="Edit section: Origin"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Until the mid-19th century, vessel speed at sea was measured using a <a href="/wiki/Chip_log" title="Chip log">chip log</a>. This consisted of a wooden panel, attached by line to a reel, and weighted on one edge to float perpendicularly to the water surface and thus present substantial resistance to the water moving around it. The chip log was cast over the stern of the moving vessel and the line allowed to pay out.<sup id="cite_ref-Abbott1858_8-0" class="reference"><a href="#cite_note-Abbott1858-8"><span class="cite-bracket">[</span>8<span class="cite-bracket">]</span></a></sup> <a href="/wiki/Knot" title="Knot">Knots</a> tied at a distance of 47 <a href="/wiki/Foot_(unit)" title="Foot (unit)">feet</a> 3 <a href="/wiki/Inch" title="Inch">inches</a> (14.4018 <a href="/wiki/Metre" title="Metre">m</a>) from each other, passed through a sailor's fingers, while another sailor used a 30-second <a href="/wiki/Hourglass" title="Hourglass">sand-glass</a> (28-second sand-glass is the currently accepted timing) to time the operation.<sup id="cite_ref-9" class="reference"><a href="#cite_note-9"><span class="cite-bracket">[</span>9<span class="cite-bracket">]</span></a></sup> The knot count would be reported and used in the <a href="/wiki/Sailing_master" class="mw-redirect" title="Sailing master">sailing master</a>'s <a href="/wiki/Dead_reckoning" title="Dead reckoning">dead reckoning</a> and <a href="/wiki/Navigation" title="Navigation">navigation</a>. This method gives a value for the knot of <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">20<span class="sr-only">+</span><span class="num">1</span>⁄<span class="den">4</span></span> inches per second or 1.85166 kilometres per hour. The difference from the modern definition is less than 0.02%. </p><p>Derivation of knots spacing: </p><p><span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle 1~{\textrm {kn}}=1852~{\textrm {m/h}}=0.5144~{\textrm {m/s}}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mn>1</mn> <mtext> </mtext> <mrow class="MJX-TeXAtom-ORD"> <mrow class="MJX-TeXAtom-ORD"> <mtext>kn</mtext> </mrow> </mrow> <mo>=</mo> <mn>1852</mn> <mtext> </mtext> <mrow class="MJX-TeXAtom-ORD"> <mrow class="MJX-TeXAtom-ORD"> <mtext>m/h</mtext> </mrow> </mrow> <mo>=</mo> <mn>0.5144</mn> <mtext> </mtext> <mrow class="MJX-TeXAtom-ORD"> <mrow class="MJX-TeXAtom-ORD"> <mtext>m/s</mtext> </mrow> </mrow> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle 1~{\textrm {kn}}=1852~{\textrm {m/h}}=0.5144~{\textrm {m/s}}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/b38a52c806efd765e70381f856f0d647573d42c4" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.838ex; width:31.136ex; height:2.843ex;" alt="{\displaystyle 1~{\textrm {kn}}=1852~{\textrm {m/h}}=0.5144~{\textrm {m/s}}}"></span>, so in <span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle 28}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mn>28</mn> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle 28}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/c88f99b6131febe59de9aeeb35f429c94fa36e78" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.338ex; width:2.325ex; height:2.176ex;" alt="{\displaystyle 28}"></span> seconds that is <span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle 14.40}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mn>14.40</mn> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle 14.40}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/4deac7725f5f2cdd3025fd7bcbd6a41211d59e51" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.338ex; width:5.297ex; height:2.176ex;" alt="{\displaystyle 14.40}"></span> metres per knot. </p> <div class="mw-heading mw-heading2"><h2 id="Modern_use">Modern use</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Knot_(unit)&action=edit&section=4" title="Edit section: Modern use"><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:World_Scale_from_DMA_Series_1150_map.png" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/2/25/World_Scale_from_DMA_Series_1150_map.png/429px-World_Scale_from_DMA_Series_1150_map.png" decoding="async" width="429" height="116" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/2/25/World_Scale_from_DMA_Series_1150_map.png/644px-World_Scale_from_DMA_Series_1150_map.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/2/25/World_Scale_from_DMA_Series_1150_map.png/858px-World_Scale_from_DMA_Series_1150_map.png 2x" data-file-width="3301" data-file-height="890" /></a><figcaption>Graphic scale from a Mercator projection world map, showing the change with latitude</figcaption></figure> <p>Although the unit <i>knot</i> does not fit within the SI system, its retention for nautical and aviation use is important because the length of a <a href="/wiki/Nautical_mile" title="Nautical mile">nautical mile</a>, upon which the knot is based, is closely related to the <a href="/wiki/Longitude" title="Longitude">longitude</a>/<a href="/wiki/Latitude" title="Latitude">latitude</a> <a href="/wiki/Geographic_coordinate_system" title="Geographic coordinate system">geographic coordinate system</a>. As a result, nautical miles and knots are convenient units to use when navigating an aircraft or ship. </p><p>On a standard nautical chart using <a href="/wiki/Mercator_projection" title="Mercator projection">Mercator projection</a>, the horizontal (East–West) scale varies with latitude. On a chart of the North Atlantic, the scale varies by a factor of two from Florida to Greenland. A single <a href="/wiki/Linear_scale" title="Linear scale">graphic scale</a>, of the sort on many maps, would therefore be useless on such a chart. Since the length of a nautical mile, for practical purposes, is equivalent to about a minute of latitude, a distance in nautical miles on a chart can easily be measured by using <a href="/wiki/Caliper#Divider_caliper" class="mw-redirect" title="Caliper">dividers</a> and the latitude scales on the sides of the chart. Recent British <a href="/wiki/Admiralty_chart" title="Admiralty chart">Admiralty charts</a> have a latitude scale down the middle to make this even easier.<sup id="cite_ref-10" class="reference"><a href="#cite_note-10"><span class="cite-bracket">[</span>10<span class="cite-bracket">]</span></a></sup> </p><p>Speed is sometimes incorrectly expressed as "knots per hour",<sup id="cite_ref-Kipling_11-0" class="reference"><a href="#cite_note-Kipling-11"><span class="cite-bracket">[</span>11<span class="cite-bracket">]</span></a></sup> which would mean "nautical miles per hour per hour" and thus would refer to <a href="/wiki/Acceleration" title="Acceleration">acceleration</a>. </p> <div class="mw-heading mw-heading3"><h3 id="Aeronautical_terms">Aeronautical terms</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Knot_(unit)&action=edit&section=5" title="Edit section: Aeronautical terms"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Prior to 1969, airworthiness standards for civil aircraft in the United States <a href="/wiki/Federal_Aviation_Regulations" title="Federal Aviation Regulations">Federal Aviation Regulations</a> specified that distances were to be in statute miles, and speeds in miles per hour. In 1969, these standards were progressively amended to specify that distances were to be in nautical miles, and speeds in knots.<sup id="cite_ref-12" class="reference"><a href="#cite_note-12"><span class="cite-bracket">[</span>12<span class="cite-bracket">]</span></a></sup> </p><p>The following abbreviations are used to distinguish between various measurements of <a href="/wiki/Airspeed" title="Airspeed">airspeed</a>:<sup id="cite_ref-13" class="reference"><a href="#cite_note-13"><span class="cite-bracket">[</span>13<span class="cite-bracket">]</span></a></sup> </p> <ul><li>TAS is "knots <a href="/wiki/True_airspeed" title="True airspeed">true airspeed</a>", the airspeed of an aircraft relative to undisturbed air</li> <li>KIAS is "knots <a href="/wiki/Indicated_airspeed" title="Indicated airspeed">indicated airspeed</a>", the speed shown on an aircraft's <a href="/wiki/Pitot-static_system" class="mw-redirect" title="Pitot-static system">pitot-static</a> <a href="/wiki/Airspeed_indicator" title="Airspeed indicator">airspeed indicator</a></li> <li>CAS is "knots <a href="/wiki/Calibrated_airspeed" title="Calibrated airspeed">calibrated airspeed</a>", the indicated airspeed corrected for <a href="/wiki/Position_error" title="Position error">position error</a> and instrument error</li> <li>EAS is "knots <a href="/wiki/Equivalent_airspeed" title="Equivalent airspeed">equivalent airspeed</a>", the calibrated airspeed corrected for <a href="/wiki/Adiabatic_process" title="Adiabatic process">adiabatic</a> <a href="/wiki/Compressible_flow" title="Compressible flow">compressible flow</a> for the particular altitude</li></ul> <p>The indicated airspeed is close to the true airspeed only at sea level in standard conditions and at low speeds. At <span style="white-space: nowrap">11<span style="margin-left: 0.25em">000</span></span> m (<span style="white-space: nowrap">36<span style="margin-left: 0.25em">000</span></span> ft), an indicated airspeed of 300 kn may correspond to a true airspeed of 500 kn in standard conditions. </p> <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=Knot_(unit)&action=edit&section=6" title="Edit section: See also"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <style data-mw-deduplicate="TemplateStyles:r1239009302">.mw-parser-output .portalbox{padding:0;margin:0.5em 0;display:table;box-sizing:border-box;max-width:175px;list-style:none}.mw-parser-output .portalborder{border:1px solid var(--border-color-base,#a2a9b1);padding:0.1em;background:var(--background-color-neutral-subtle,#f8f9fa)}.mw-parser-output .portalbox-entry{display:table-row;font-size:85%;line-height:110%;height:1.9em;font-style:italic;font-weight:bold}.mw-parser-output .portalbox-image{display:table-cell;padding:0.2em;vertical-align:middle;text-align:center}.mw-parser-output .portalbox-link{display:table-cell;padding:0.2em 0.2em 0.2em 0.3em;vertical-align:middle}@media(min-width:720px){.mw-parser-output .portalleft{clear:left;float:left;margin:0.5em 1em 0.5em 0}.mw-parser-output .portalright{clear:right;float:right;margin:0.5em 0 0.5em 1em}}</style><ul role="navigation" aria-label="Portals" class="noprint portalbox portalborder portalright"> <li class="portalbox-entry"><span class="portalbox-image"><span class="noviewer" typeof="mw:File"><a href="/wiki/File:Nuvola_apps_ksysv_square.svg" class="mw-file-description"><img alt="icon" src="//upload.wikimedia.org/wikipedia/commons/thumb/7/7d/Nuvola_apps_ksysv_square.svg/28px-Nuvola_apps_ksysv_square.svg.png" decoding="async" width="28" height="28" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/7/7d/Nuvola_apps_ksysv_square.svg/42px-Nuvola_apps_ksysv_square.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/7/7d/Nuvola_apps_ksysv_square.svg/56px-Nuvola_apps_ksysv_square.svg.png 2x" data-file-width="1000" data-file-height="1000" /></a></span></span><span class="portalbox-link"><a href="/wiki/Portal:Transport" title="Portal:Transport">Transport portal</a></span></li></ul> <ul><li><a href="/wiki/Beaufort_scale" title="Beaufort scale">Beaufort scale</a></li> <li><a href="/wiki/Hull_speed" title="Hull speed">Hull speed</a>, which deals with theoretical estimates of practical maximum speed of displacement hulls</li> <li><a href="/wiki/Knot_count" class="mw-redirect" title="Knot count">Knot count</a></li> <li><a href="/wiki/Knotted_cord" title="Knotted cord">Knotted cord</a></li> <li><a href="/wiki/Metre_per_second" title="Metre per second">Metre per second</a></li> <li><a href="/wiki/Orders_of_magnitude_(speed)" title="Orders of magnitude (speed)">Orders of magnitude (speed)</a></li> <li><a href="/wiki/Rope_(unit)" title="Rope (unit)">Rope (unit)</a></li></ul> <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=Knot_(unit)&action=edit&section=7" title="Edit section: References"><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"> <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="CITEREFWragg1973" class="citation book cs1">Wragg, David W. (1973). <i>A Dictionary of Aviation</i> (first ed.). Osprey. p. 173. <a href="/wiki/ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a> <a href="/wiki/Special:BookSources/9780850451634" title="Special:BookSources/9780850451634"><bdi>9780850451634</bdi></a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=A+Dictionary+of+Aviation&rft.pages=173&rft.edition=first&rft.pub=Osprey&rft.date=1973&rft.isbn=9780850451634&rft.aulast=Wragg&rft.aufirst=David+W.&rfr_id=info%3Asid%2Fen.wikipedia.org%3AKnot+%28unit%29" class="Z3988"></span></span> </li> <li id="cite_note-2"><span class="mw-cite-backlink"><b><a href="#cite_ref-2">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFBartlett2008" class="citation book cs1">Bartlett, Tim (July 2008) [2003]. <i>RYA Navigation Handbook</i>. Southampton: <a href="/wiki/Royal_Yachting_Association" title="Royal Yachting Association">Royal Yachting Association</a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=RYA+Navigation+Handbook&rft.place=Southampton&rft.pub=Royal+Yachting+Association&rft.date=2008-07&rft.aulast=Bartlett&rft.aufirst=Tim&rfr_id=info%3Asid%2Fen.wikipedia.org%3AKnot+%28unit%29" class="Z3988"></span></span> </li> <li id="cite_note-3"><span class="mw-cite-backlink"><b><a href="#cite_ref-3">^</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.iso.org/iso/catalogue_detail?csnumber=31888">"ISO 80000-3:2006"</a>. <a href="/wiki/International_Organization_for_Standardization" title="International Organization for Standardization">International Organization for Standardization</a><span class="reference-accessdate">. Retrieved <span class="nowrap">20 July</span> 2013</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=ISO+80000-3%3A2006&rft.pub=International+Organization+for+Standardization&rft_id=http%3A%2F%2Fwww.iso.org%2Fiso%2Fcatalogue_detail%3Fcsnumber%3D31888&rfr_id=info%3Asid%2Fen.wikipedia.org%3AKnot+%28unit%29" class="Z3988"></span></span> </li> <li id="cite_note-4"><span class="mw-cite-backlink"><b><a href="#cite_ref-4">^</a></b></span> <span class="reference-text">International Standards and Recommended Practices, Annex 5 to the Convention on International Civil Aviation, "Units of measurement to be Used in Air and Ground Operations", ICAO, 4th Edition, July 1979.</span> </li> <li id="cite_note-nonSi-5"><span class="mw-cite-backlink">^ <a href="#cite_ref-nonSi_5-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-nonSi_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="http://www.bipm.org/en/publications/si-brochure/table8.html">"Non-SI units accepted for use with the SI, and units based on fundamental constants"</a>. <i>SI brochure (8th ed.)</i>. <a href="/wiki/International_Bureau_of_Weights_and_Measures" title="International Bureau of Weights and Measures">International Bureau of Weights and Measures</a>. <q>The knot is defined as one nautical mile per hour. There is no internationally agreed symbol, but the symbol kn is commonly used.</q></cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=SI+brochure+%288th+ed.%29&rft.atitle=Non-SI+units+accepted+for+use+with+the+SI%2C+and+units+based+on+fundamental+constants&rft_id=http%3A%2F%2Fwww.bipm.org%2Fen%2Fpublications%2Fsi-brochure%2Ftable8.html&rfr_id=info%3Asid%2Fen.wikipedia.org%3AKnot+%28unit%29" class="Z3988"></span></span> </li> <li id="cite_note-usnm-6"><span class="mw-cite-backlink"><b><a href="#cite_ref-usnm_6-0">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFLouis_E._Barbow_and_Lewie_V._Judson1976" class="citation web cs1">Louis E. Barbow and Lewie V. Judson (1976). <a rel="nofollow" class="external text" href="https://web.archive.org/web/20070926000328/http://physics.nist.gov/Pubs/SP447/app4.pdf">"Appendix 4 The international nautical mile"</a> <span class="cs1-format">(PDF)</span>. <i>Weights and Measures Standards of the United States, A brief history</i>. NIST Physics Laboratory. Archived from <a rel="nofollow" class="external text" href="http://physics.nist.gov/Pubs/SP447/app4.pdf">the original</a> <span class="cs1-format">(PDF)</span> on 26 September 2007<span class="reference-accessdate">. Retrieved <span class="nowrap">2 August</span> 2007</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=Weights+and+Measures+Standards+of+the+United+States%2C+A+brief+history&rft.atitle=Appendix+4+The+international+nautical+mile&rft.date=1976&rft.au=Louis+E.+Barbow+and+Lewie+V.+Judson&rft_id=http%3A%2F%2Fphysics.nist.gov%2FPubs%2FSP447%2Fapp4.pdf&rfr_id=info%3Asid%2Fen.wikipedia.org%3AKnot+%28unit%29" class="Z3988"></span></span> </li> <li id="cite_note-7"><span class="mw-cite-backlink"><b><a href="#cite_ref-7">^</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.icao.int/safety/airnavigation/nationalitymarks/annexes_booklet_en.pdf">"The Convention on International Civil Aviation Annexes 1 to 18"</a> <span class="cs1-format">(PDF)</span><span class="reference-accessdate">. Retrieved <span class="nowrap">11 November</span> 2024</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=The+Convention+on+International+Civil+Aviation+Annexes+1+to+18&rft_id=https%3A%2F%2Fwww.icao.int%2Fsafety%2Fairnavigation%2Fnationalitymarks%2Fannexes_booklet_en.pdf&rfr_id=info%3Asid%2Fen.wikipedia.org%3AKnot+%28unit%29" class="Z3988"></span></span> </li> <li id="cite_note-Abbott1858-8"><span class="mw-cite-backlink"><b><a href="#cite_ref-Abbott1858_8-0">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFJacob_Abbott1858" class="citation book cs1">Jacob Abbott (1858). <a rel="nofollow" class="external text" href="https://books.google.com/books?id=NQYXAAAAYAAJ"><i>Rollo on the Atlantic</i></a>. DeWolfe, Fiske, & Co., Publishers<span class="reference-accessdate">. Retrieved <span class="nowrap">30 November</span> 2011</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=Rollo+on+the+Atlantic&rft.pub=DeWolfe%2C+Fiske%2C+%26+Co.%2C+Publishers&rft.date=1858&rft.au=Jacob+Abbott&rft_id=https%3A%2F%2Fbooks.google.com%2Fbooks%3Fid%3DNQYXAAAAYAAJ&rfr_id=info%3Asid%2Fen.wikipedia.org%3AKnot+%28unit%29" class="Z3988"></span></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 id="CITEREFKemp1976" class="citation book cs1">Kemp, Peter, ed. (1976). <span class="id-lock-registration" title="Free registration required"><a rel="nofollow" class="external text" href="https://archive.org/details/oxfordcompaniont00kemp"><i>The Oxford Companion to Ships and the Sea</i></a></span>. Oxford University Press. p. <a rel="nofollow" class="external text" href="https://archive.org/details/oxfordcompaniont00kemp/page/454">454</a>. <a href="/wiki/ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a> <a href="/wiki/Special:BookSources/0-19-282084-2" title="Special:BookSources/0-19-282084-2"><bdi>0-19-282084-2</bdi></a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=The+Oxford+Companion+to+Ships+and+the+Sea&rft.pages=454&rft.pub=Oxford+University+Press&rft.date=1976&rft.isbn=0-19-282084-2&rft_id=https%3A%2F%2Farchive.org%2Fdetails%2Foxfordcompaniont00kemp&rfr_id=info%3Asid%2Fen.wikipedia.org%3AKnot+%28unit%29" class="Z3988"></span></span> </li> <li id="cite_note-10"><span class="mw-cite-backlink"><b><a href="#cite_ref-10">^</a></b></span> <span class="reference-text">E.g. BA Chart 73, <i>Puerto de Huelva and Approaches</i>, 2002</span> </li> <li id="cite_note-Kipling-11"><span class="mw-cite-backlink"><b><a href="#cite_ref-Kipling_11-0">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFWilson2009" class="citation web cs1">Wilson, Alastair (22 July 2009). <a rel="nofollow" class="external text" href="http://www.kipling.org.uk/rg_knotsanhour.htm">"<span class="cs1-kern-left"></span>'Knots an hour'<span class="cs1-kern-right"></span>"</a>. <a href="/wiki/Kipling_Society" class="mw-redirect" title="Kipling Society">The Kipling Society</a><span class="reference-accessdate">. Retrieved <span class="nowrap">1 December</span> 2012</span>. <q>Since the 1890s or thereabouts, it has been drummed into the young seaman that a knot is a unit of speed, namely, one nautical mile per hour; and that consequently only the uneducated speak of "knots per hour" or "knots an hour". It was therefore inevitable that Kipling's frequent use of this expression should grieve a number of seafaring readers, as the pages of the Kipling Journal testify.</q></cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=%27Knots+an+hour%27&rft.pub=The+Kipling+Society&rft.date=2009-07-22&rft.aulast=Wilson&rft.aufirst=Alastair&rft_id=http%3A%2F%2Fwww.kipling.org.uk%2Frg_knotsanhour.htm&rfr_id=info%3Asid%2Fen.wikipedia.org%3AKnot+%28unit%29" class="Z3988"></span></span> </li> <li id="cite_note-12"><span class="mw-cite-backlink"><b><a href="#cite_ref-12">^</a></b></span> <span class="reference-text">For example, Part 23 of the Federal Aviation Regulations, amendment 23–7, 14 September 1969</span> </li> <li id="cite_note-13"><span class="mw-cite-backlink"><b><a href="#cite_ref-13">^</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://edocket.access.gpo.gov/cfr_2009/janqtr/14cfr1.2.htm">"Abbreviations and symbols"</a>. <i>edocket.access.gpo.gov</i>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=edocket.access.gpo.gov&rft.atitle=Abbreviations+and+symbols.&rft_id=http%3A%2F%2Fedocket.access.gpo.gov%2Fcfr_2009%2Fjanqtr%2F14cfr1.2.htm&rfr_id=info%3Asid%2Fen.wikipedia.org%3AKnot+%28unit%29" class="Z3988"></span></span> </li> </ol></div></div>    </div><noscript><img src="https://login.wikimedia.org/wiki/Special:CentralAutoLogin/start?type=1x1" alt="" width="1" height="1" style="border: none; position: absolute;"></noscript> <div class="printfooter" data-nosnippet="">Retrieved from "<a dir="ltr" href="https://en.wikipedia.org/w/index.php?title=Knot_(unit)&oldid=1258838914">https://en.wikipedia.org/w/index.php?title=Knot_(unit)&oldid=1258838914</a>"</div></div> <div id="catlinks" class="catlinks" data-mw="interface"><div id="mw-normal-catlinks" class="mw-normal-catlinks"><a href="/wiki/Help:Category" title="Help:Category">Categories</a>: <ul><li><a href="/wiki/Category:Navigation" title="Category:Navigation">Navigation</a></li><li><a href="/wiki/Category:Units_of_velocity" title="Category:Units of velocity">Units of velocity</a></li><li><a href="/wiki/Category:Water_transport" title="Category:Water transport">Water transport</a></li></ul></div><div id="mw-hidden-catlinks" class="mw-hidden-catlinks mw-hidden-cats-hidden">Hidden categories: <ul><li><a href="/wiki/Category:Articles_with_short_description" title="Category:Articles with short description">Articles with short description</a></li><li><a href="/wiki/Category:Short_description_matches_Wikidata" title="Category:Short description matches Wikidata">Short description matches Wikidata</a></li><li><a href="/wiki/Category:Use_dmy_dates_from_June_2017" title="Category:Use dmy dates from June 2017">Use dmy dates from June 2017</a></li><li><a href="/wiki/Category:Articles_containing_potentially_dated_statements_from_2024" title="Category:Articles containing potentially dated statements from 2024">Articles containing potentially dated statements from 2024</a></li><li><a href="/wiki/Category:All_articles_containing_potentially_dated_statements" title="Category:All articles containing potentially dated statements">All articles containing potentially dated statements</a></li></ul></div></div> </div> </main> </div> <div class="mw-footer-container"> <footer id="footer" class="mw-footer" > <ul id="footer-info"> <li id="footer-info-lastmod"> This page was last edited on 21 November 2024, at 22:30<span class="anonymous-show"> (UTC)</span>.</li> <li id="footer-info-copyright">Text is available under the <a href="/wiki/Wikipedia:Text_of_the_Creative_Commons_Attribution-ShareAlike_4.0_International_License" title="Wikipedia:Text of the Creative Commons Attribution-ShareAlike 4.0 International License">Creative Commons Attribution-ShareAlike 4.0 License</a>; additional terms may apply. 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