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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">Pound per square inch</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 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Available in 32 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-32" 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">32 languages</span> </label> <div class="vector-dropdown-content"> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li class="interlanguage-link interwiki-ar mw-list-item"><a href="https://ar.wikipedia.org/wiki/%D8%B1%D8%B7%D9%84_%D9%84%D9%83%D9%84_%D8%A8%D9%88%D8%B5%D8%A9_%D9%85%D8%B1%D8%A8%D8%B9%D8%A9" title="رطل لكل بوصة مربعة – Arabic" lang="ar" hreflang="ar" data-title="رطل لكل بوصة مربعة" data-language-autonym="العربية" data-language-local-name="Arabic" class="interlanguage-link-target"><span>العربية</span></a></li><li class="interlanguage-link interwiki-be-x-old mw-list-item"><a href="https://be-tarask.wikipedia.org/wiki/Psi_(%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="Psi (адзінка вымярэньня) – Belarusian (Taraškievica orthography)" lang="be-tarask" hreflang="be-tarask" data-title="Psi (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-ca mw-list-item"><a href="https://ca.wikipedia.org/wiki/Lliura_per_polzada_quadrada" title="Lliura per polzada quadrada – Catalan" lang="ca" hreflang="ca" data-title="Lliura per polzada quadrada" 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/Psi_(jednotka)" title="Psi (jednotka) – Czech" lang="cs" hreflang="cs" data-title="Psi (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/PSI_(trykenhed)" title="PSI (trykenhed) – Danish" lang="da" hreflang="da" data-title="PSI (trykenhed)" 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/Pound-force_per_square_inch" title="Pound-force per square inch – German" lang="de" hreflang="de" data-title="Pound-force per square inch" data-language-autonym="Deutsch" data-language-local-name="German" class="interlanguage-link-target"><span>Deutsch</span></a></li><li class="interlanguage-link interwiki-es mw-list-item"><a href="https://es.wikipedia.org/wiki/Libra_por_pulgada_cuadrada" title="Libra por pulgada cuadrada – Spanish" lang="es" hreflang="es" data-title="Libra por pulgada cuadrada" data-language-autonym="Español" data-language-local-name="Spanish" class="interlanguage-link-target"><span>Español</span></a></li><li class="interlanguage-link interwiki-eu mw-list-item"><a href="https://eu.wikipedia.org/wiki/PSI" title="PSI – Basque" lang="eu" hreflang="eu" data-title="PSI" 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/%D9%BE%D9%88%D9%86%D8%AF_%D8%A8%D8%B1_%D8%A7%DB%8C%D9%86%DA%86_%D9%85%D8%B1%D8%A8%D8%B9" title="پوند بر اینچ مربع – Persian" lang="fa" hreflang="fa" data-title="پوند بر اینچ مربع" 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/Livre-force_par_pouce_carr%C3%A9" title="Livre-force par pouce carré – French" lang="fr" hreflang="fr" data-title="Livre-force par pouce carré" data-language-autonym="Français" data-language-local-name="French" class="interlanguage-link-target"><span>Français</span></a></li><li class="interlanguage-link interwiki-ko mw-list-item"><a href="https://ko.wikipedia.org/wiki/%EC%A0%9C%EA%B3%B1_%EC%9D%B8%EC%B9%98_%EB%8B%B9_%ED%8C%8C%EC%9A%B4%EB%93%9C" title="제곱 인치 당 파운드 – Korean" lang="ko" hreflang="ko" data-title="제곱 인치 당 파운드" data-language-autonym="한국어" data-language-local-name="Korean" class="interlanguage-link-target"><span>한국어</span></a></li><li class="interlanguage-link interwiki-hr mw-list-item"><a href="https://hr.wikipedia.org/wiki/Psi_(tlak)" title="Psi (tlak) – Croatian" lang="hr" hreflang="hr" data-title="Psi (tlak)" data-language-autonym="Hrvatski" data-language-local-name="Croatian" class="interlanguage-link-target"><span>Hrvatski</span></a></li><li class="interlanguage-link interwiki-it mw-list-item"><a href="https://it.wikipedia.org/wiki/Psi_(unit%C3%A0_di_misura)" title="Psi (unità di misura) – Italian" lang="it" hreflang="it" data-title="Psi (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/PSI" title="PSI – Hebrew" lang="he" hreflang="he" data-title="PSI" data-language-autonym="עברית" data-language-local-name="Hebrew" class="interlanguage-link-target"><span>עברית</span></a></li><li class="interlanguage-link interwiki-lmo mw-list-item"><a href="https://lmo.wikipedia.org/wiki/Psi_(unitaa_de_misura)" title="Psi (unitaa de misura) – Lombard" lang="lmo" hreflang="lmo" data-title="Psi (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%A4%D1%83%D0%BD%D1%82%D0%B0_%D0%BD%D0%B0_%D0%BA%D0%B2%D0%B0%D0%B4%D1%80%D0%B0%D1%82%D0%B5%D0%BD_%D0%B8%D0%BD%D1%87" title="Фунта на квадратен инч – Macedonian" lang="mk" hreflang="mk" data-title="Фунта на квадратен инч" data-language-autonym="Македонски" data-language-local-name="Macedonian" class="interlanguage-link-target"><span>Македонски</span></a></li><li class="interlanguage-link interwiki-nl mw-list-item"><a href="https://nl.wikipedia.org/wiki/Pound-force_per_square_inch" title="Pound-force per square inch – Dutch" lang="nl" hreflang="nl" data-title="Pound-force per square inch" 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/%E9%87%8D%E9%87%8F%E3%83%9D%E3%83%B3%E3%83%89%E6%AF%8E%E5%B9%B3%E6%96%B9%E3%82%A4%E3%83%B3%E3%83%81" title="重量ポンド毎平方インチ – Japanese" lang="ja" hreflang="ja" data-title="重量ポンド毎平方インチ" 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/Psi_(trykkenhet)" title="Psi (trykkenhet) – Norwegian Bokmål" lang="nb" hreflang="nb" data-title="Psi (trykkenhet)" 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/PSI" title="PSI – Norwegian Nynorsk" lang="nn" hreflang="nn" data-title="PSI" 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-pl mw-list-item"><a href="https://pl.wikipedia.org/wiki/Psi_(jednostka)" title="Psi (jednostka) – Polish" lang="pl" hreflang="pl" data-title="Psi (jednostka)" 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/Psi_(unidade_de_medida)" title="Psi (unidade de medida) – Portuguese" lang="pt" hreflang="pt" data-title="Psi (unidade de medida)" data-language-autonym="Português" data-language-local-name="Portuguese" class="interlanguage-link-target"><span>Português</span></a></li><li class="interlanguage-link interwiki-ru mw-list-item"><a href="https://ru.wikipedia.org/wiki/%D0%A4%D1%83%D0%BD%D1%82_%D0%BD%D0%B0_%D0%BA%D0%B2%D0%B0%D0%B4%D1%80%D0%B0%D1%82%D0%BD%D1%8B%D0%B9_%D0%B4%D1%8E%D0%B9%D0%BC" title="Фунт на квадратный дюйм – Russian" lang="ru" hreflang="ru" data-title="Фунт на квадратный дюйм" data-language-autonym="Русский" data-language-local-name="Russian" class="interlanguage-link-target"><span>Русский</span></a></li><li class="interlanguage-link interwiki-ckb mw-list-item"><a href="https://ckb.wikipedia.org/wiki/%D9%BE%D8%A7%D9%88%DB%95%D9%86%D8%AF_%D8%A8%DB%86_%DA%BE%DB%95%D8%B1_%D8%A6%DB%8C%D9%86%DA%86%DB%8E%DA%A9%DB%8C_%DA%86%D9%88%D8%A7%D8%B1%DA%AF%DB%86%D8%B4%DB%95" title="پاوەند بۆ ھەر ئینچێکی چوارگۆشە – Central Kurdish" lang="ckb" hreflang="ckb" data-title="پاوەند بۆ ھەر ئینچێکی چوارگۆشە" data-language-autonym="کوردی" data-language-local-name="Central Kurdish" class="interlanguage-link-target"><span>کوردی</span></a></li><li class="interlanguage-link interwiki-fi mw-list-item"><a href="https://fi.wikipedia.org/wiki/Psi_(mittayksikk%C3%B6)" title="Psi (mittayksikkö) – Finnish" lang="fi" hreflang="fi" data-title="Psi (mittayksikkö)" 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/Psi_(tryckenhet)" title="Psi (tryckenhet) – Swedish" lang="sv" hreflang="sv" data-title="Psi (tryckenhet)" 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%9B%E0%B8%AD%E0%B8%99%E0%B8%94%E0%B9%8C%E0%B8%95%E0%B9%88%E0%B8%AD%E0%B8%95%E0%B8%B2%E0%B8%A3%E0%B8%B2%E0%B8%87%E0%B8%99%E0%B8%B4%E0%B9%89%E0%B8%A7" title="ปอนด์ต่อตารางนิ้ว – Thai" lang="th" hreflang="th" data-title="ปอนด์ต่อตารางนิ้ว" 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/%C4%B0n%C3%A7kare_ba%C5%9F%C4%B1na_libre" title="İnçkare başına libre – Turkish" lang="tr" hreflang="tr" data-title="İnçkare başına libre" 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%A4%D1%83%D0%BD%D1%82_%D0%BD%D0%B0_%D0%BA%D0%B2%D0%B0%D0%B4%D1%80%D0%B0%D1%82%D0%BD%D0%B8%D0%B9_%D0%B4%D1%8E%D0%B9%D0%BC" title="Фунт на квадратний дюйм – Ukrainian" lang="uk" hreflang="uk" data-title="Фунт на квадратний дюйм" 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/%D9%BE%D8%A7%D8%A4%D9%86%DA%88_%D9%81%DB%8C_%D9%85%D8%B1%D8%A8%D8%B9_%D8%A7%D9%86%DA%86" title="پاؤنڈ فی مربع انچ – Urdu" lang="ur" hreflang="ur" data-title="پاؤنڈ فی مربع انچ" 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/Pound_tr%C3%AAn_inch_vu%C3%B4ng" title="Pound trên inch vuông – Vietnamese" lang="vi" hreflang="vi" data-title="Pound trên inch vuông" 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-zh mw-list-item"><a href="https://zh.wikipedia.org/wiki/%E7%A3%85%E5%8A%9B%E6%AF%8F%E5%B9%B3%E6%96%B9%E8%8B%B1%E5%AF%B8" title="磅力每平方英寸 – Chinese" lang="zh" hreflang="zh" data-title="磅力每平方英寸" 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 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class="mw-redirectedfrom">(Redirected from <a href="/w/index.php?title=Pounds_per_square_inch&redirect=no" class="mw-redirect" title="Pounds per square inch">Pounds per square inch</a>)</span></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 pressure or stress</div> <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">Pound per square inch</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:Psidial.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/e/e4/Psidial.jpg/220px-Psidial.jpg" decoding="async" width="220" height="220" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/e/e4/Psidial.jpg/330px-Psidial.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/e/e4/Psidial.jpg/440px-Psidial.jpg 2x" data-file-width="1641" data-file-height="1641" /></a></span><div class="infobox-caption">A <a href="/wiki/Pressure_gauge" class="mw-redirect" title="Pressure gauge">pressure gauge</a> reading in psi (red scale) and <a href="/wiki/KPa" class="mw-redirect" title="KPa">kPa</a> (black scale)</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/Imperial_units" title="Imperial units">Imperial units</a>, <a href="/wiki/US_customary_units" class="mw-redirect" title="US customary units">US customary units</a></td></tr><tr><th scope="row" class="infobox-label">Unit of</th><td class="infobox-data"><a href="/wiki/Pressure" title="Pressure">Pressure</a>, <a href="/wiki/Stress_(physics)" class="mw-redirect" title="Stress (physics)">stress</a></td></tr><tr><th scope="row" class="infobox-label">Symbol</th><td class="infobox-data">psi, lbf/in<sup>2</sup></td></tr><tr><th colspan="2" class="infobox-header">Conversions </th></tr><tr class="nowrap"><td>1 psi <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/SI_units" class="mw-redirect" title="SI units">SI units</a></th><td class="infobox-data"><span class="nowrap">   </span>6.894757 kPa</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>pound per square inch</b> (abbreviation: <b>psi</b>) or, more accurately, <b>pound-force per square inch</b> (symbol: <b>lbf/in<sup>2</sup></b>),<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> is a <a href="/wiki/Unit_of_measurement" title="Unit of measurement">unit of measurement</a> of <a href="/wiki/Pressure" title="Pressure">pressure</a> or of <a href="/wiki/Stress_(mechanics)" title="Stress (mechanics)">stress</a> based on <a href="/wiki/Avoirdupois" title="Avoirdupois">avoirdupois</a> units. It is the pressure resulting from a <a href="/wiki/Force_(physics)" class="mw-redirect" title="Force (physics)">force</a> with magnitude of one <a href="/wiki/Pound-force" class="mw-redirect" title="Pound-force">pound-force</a> applied to an area of one <a href="/wiki/Square_inch" title="Square inch">square inch</a>. In <a href="/wiki/SI_units" class="mw-redirect" title="SI units">SI units</a>, 1 psi is approximately 6,895 <a href="/wiki/Pascal_(unit)" title="Pascal (unit)">pascals</a>. </p><p>The <b>pound per square inch absolute</b> (<b>psia</b>) is used to make it clear that the pressure is relative to a <a href="/wiki/Vacuum" title="Vacuum">vacuum</a> rather than the ambient atmospheric pressure. Since atmospheric pressure at sea level is around 14.7 psi (101 <a href="/wiki/Pascal_(unit)" title="Pascal (unit)">kilopascals</a>), this will be added to any pressure reading made in air at <a href="/wiki/Sea_level" title="Sea level">sea level</a>. The converse is <b>pound per square inch gauge</b> (<b>psig</b>), indicating that the pressure is relative to atmospheric pressure. For example, a bicycle tire pumped up to 65 psig in a local atmospheric pressure at sea level (14.7 psi) will have a pressure of 79.7 psia (14.7 psi + 65 psi).<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><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> When gauge pressure is referenced to something other than ambient atmospheric pressure, then the unit is <b>pound per square inch differential</b> (<b>psid</b>). </p> <meta property="mw:PageProp/toc" /> <div class="mw-heading mw-heading2"><h2 id="Multiples">Multiples</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Pound_per_square_inch&action=edit&section=1" title="Edit section: Multiples"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>The <i>kilopound per square inch</i> (<i>ksi</i>) is a scaled unit derived from psi, equivalent to a thousand psi (1000 lbf/in<sup>2</sup>). </p><p>ksi are not widely used for gas pressures. They are mostly used in <a href="/wiki/Materials_science" title="Materials science">materials science</a>, where the <a href="/wiki/Tensile_strength" class="mw-redirect" title="Tensile strength">tensile strength</a> of a material is measured as a large number of psi.<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> </p><p>The conversion in SI units is 1 ksi = 6.895 MPa, or 1 MPa = 0.145 ksi. </p><p>The <i>megapound per square inch</i> (Mpsi) is another multiple equal to a million psi. It is used in <a href="/wiki/Mechanics" title="Mechanics">mechanics</a> for the <a href="/wiki/Elastic_modulus" title="Elastic modulus">elastic modulus</a> of materials, especially for metals.<sup id="cite_ref-5" class="reference"><a href="#cite_note-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup> </p><p>The conversion in SI units is 1 Mpsi = 6.895 GPa, or 1 GPa = 0.145 Mpsi. </p> <div class="mw-heading mw-heading2"><h2 id="Magnitude">Magnitude</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Pound_per_square_inch&action=edit&section=2" title="Edit section: Magnitude"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></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">Main article: <a href="/wiki/Orders_of_magnitude_(pressure)" title="Orders of magnitude (pressure)">Orders of magnitude (pressure)</a></div> <ul><li><a href="/wiki/Inch_of_water" title="Inch of water">Inch of water</a>: 0.036 psid</li> <li><a href="/wiki/Blood_pressure" title="Blood pressure">Blood pressure</a> – clinically normal human blood pressure (120/80 <a href="/wiki/Millimetre_of_mercury" title="Millimetre of mercury">millimetre of mercury</a> (mmHg): 2.32 psig/1.55 psig</li> <li><a href="/wiki/Natural_gas" title="Natural gas">Natural gas</a> residential piped in for consumer appliance; 4–6 psig.</li> <li>Boost pressure provided by an automotive <a href="/wiki/Turbocharger" title="Turbocharger">turbocharger</a> (common): 6–15 psig</li> <li><a href="/wiki/American_football_ball" class="mw-redirect" title="American football ball">NFL football</a>: 12.5–13.5 psig</li> <li><a href="/wiki/Atmospheric_pressure" title="Atmospheric pressure">Atmospheric pressure</a> at sea level (standard): 14.7 psia</li> <li>Automobile tire overpressure (common): 32 psig</li> <li>Bicycle tire overpressure (common): 65 psig</li> <li>Workshop or garage air tools: 90 psig</li> <li><a href="/wiki/Railway_air_brake" title="Railway air brake">Railway air brakes</a> or <a href="/wiki/Air_brake_(road_vehicle)" title="Air brake (road vehicle)">road brakes</a> reservoir overpressure (common): 90–120 psig</li> <li><a href="/wiki/Racing_bicycle" title="Racing bicycle">Road racing bicycle</a> tire overpressure: 120 psig</li> <li>Steam locomotive <a href="/wiki/Fire_tube_boiler" class="mw-redirect" title="Fire tube boiler">fire tube boiler</a> (UK, 20th century): 150–280 psig</li> <li><a href="/wiki/Union_Pacific_Big_Boy" title="Union Pacific Big Boy">Union Pacific Big Boy</a> <a href="/wiki/Steam_locomotive#Boiler" title="Steam locomotive">steam locomotive boiler</a>: 300 psig</li> <li><a href="/wiki/United_States_Navy" title="United States Navy">US Navy</a> steam boiler pressure: 800 psi</li> <li><a href="/wiki/Natural_gas" title="Natural gas">Natural gas</a> pipelines: 800–1,000 psig</li> <li>Full <a href="/wiki/SCBA" class="mw-redirect" title="SCBA">SCBA</a> (self-contained breathing apparatus) for <a href="/wiki/IDLH" class="mw-redirect" title="IDLH">IDLH</a> (non-fire) atmospheres: 2,216 psig</li> <li><a href="/wiki/Nuclear_reactor" title="Nuclear reactor">Nuclear reactor</a> primary loop: 2300 psi</li> <li>Full <a href="/wiki/Scuba_set" title="Scuba set">SCUBA</a> (self-contained underwater breathing apparatus) tank overpressure (common): 3,000 psig</li> <li>Full <a href="/wiki/SCBA" class="mw-redirect" title="SCBA">SCBA</a> (self-contained breathing apparatus) for interior firefighting operations: 4,500 psig</li> <li><a href="/wiki/Airbus_A380" title="Airbus A380">Airbus A380</a> hydraulic system: 5,000 psig</li> <li><a href="/wiki/Land_Rover" title="Land Rover">Land Rover</a> Td5 diesel engine fuel injection pressure: 22,500 psi</li> <li><a href="/wiki/Ultimate_tensile_strength" title="Ultimate tensile strength">Ultimate tensile strength</a> of <a href="/wiki/ASTM_International" title="ASTM International">ASTM</a> <a href="/wiki/A36_steel" title="A36 steel">A36 steel</a>: 58,000 psi</li> <li><a href="/wiki/Water_jet_cutter" title="Water jet cutter">Water jet cutter</a>: 40,000–100,000 psig</li></ul> <div class="mw-heading mw-heading2"><h2 id="Conversions">Conversions</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Pound_per_square_inch&action=edit&section=3" title="Edit section: Conversions"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>The conversions to and from SI are computed from exact definitions but result in a repeating decimal. <sup id="cite_ref-6" class="reference"><a href="#cite_note-6"><span class="cite-bracket">[</span>6<span class="cite-bracket">]</span></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><p><span class="mwe-math-element"><span class="mwe-math-mathml-display mwe-math-mathml-a11y" style="display: none;"><math display="block" xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle P_{\text{Pa}}=P_{\text{PSI}}\times {\frac {(0.45359237~{\text{kg}}\times 9.80665~\mathrm {m/s^{2}} )/{\text{lbf}}}{(0.0254~{\text{m}}/{\text{in}})^{2}}}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <msub> <mi>P</mi> <mrow class="MJX-TeXAtom-ORD"> <mtext>Pa</mtext> </mrow> </msub> <mo>=</mo> <msub> <mi>P</mi> <mrow class="MJX-TeXAtom-ORD"> <mtext>PSI</mtext> </mrow> </msub> <mo>×</mo> <mrow class="MJX-TeXAtom-ORD"> <mfrac> <mrow> <mo stretchy="false">(</mo> <mn>0.45359237</mn> <mtext> </mtext> <mrow class="MJX-TeXAtom-ORD"> <mtext>kg</mtext> </mrow> <mo>×</mo> <mn>9.80665</mn> <mtext> </mtext> <mrow class="MJX-TeXAtom-ORD"> <mi mathvariant="normal">m</mi> <mrow class="MJX-TeXAtom-ORD"> <mo>/</mo> </mrow> <msup> <mi mathvariant="normal">s</mi> <mrow class="MJX-TeXAtom-ORD"> <mn>2</mn> </mrow> </msup> </mrow> <mo stretchy="false">)</mo> <mrow class="MJX-TeXAtom-ORD"> <mo>/</mo> </mrow> <mrow class="MJX-TeXAtom-ORD"> <mtext>lbf</mtext> </mrow> </mrow> <mrow> <mo stretchy="false">(</mo> <mn>0.0254</mn> <mtext> </mtext> <mrow class="MJX-TeXAtom-ORD"> <mtext>m</mtext> </mrow> <mrow class="MJX-TeXAtom-ORD"> <mo>/</mo> </mrow> <mrow class="MJX-TeXAtom-ORD"> <mtext>in</mtext> </mrow> <msup> <mo stretchy="false">)</mo> <mrow class="MJX-TeXAtom-ORD"> <mn>2</mn> </mrow> </msup> </mrow> </mfrac> </mrow> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle P_{\text{Pa}}=P_{\text{PSI}}\times {\frac {(0.45359237~{\text{kg}}\times 9.80665~\mathrm {m/s^{2}} )/{\text{lbf}}}{(0.0254~{\text{m}}/{\text{in}})^{2}}}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/da047b179e1e94186e226c2b20481f05bda8e890" class="mwe-math-fallback-image-display mw-invert skin-invert" aria-hidden="true" style="vertical-align: -2.671ex; width:50.606ex; height:6.676ex;" alt="{\displaystyle P_{\text{Pa}}=P_{\text{PSI}}\times {\frac {(0.45359237~{\text{kg}}\times 9.80665~\mathrm {m/s^{2}} )/{\text{lbf}}}{(0.0254~{\text{m}}/{\text{in}})^{2}}}}"></span> <span class="mwe-math-element"><span class="mwe-math-mathml-display mwe-math-mathml-a11y" style="display: none;"><math display="block" xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle P_{\text{PSI}}=P_{\text{Pa}}\times {\frac {(0.0254~{\text{m}}/{\text{in}})^{2}}{(0.45359237~{\text{kg}}\times 9.80665~\mathrm {m/s^{2}} )/{\text{lbf}}}}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <msub> <mi>P</mi> <mrow class="MJX-TeXAtom-ORD"> <mtext>PSI</mtext> </mrow> </msub> <mo>=</mo> <msub> <mi>P</mi> <mrow class="MJX-TeXAtom-ORD"> <mtext>Pa</mtext> </mrow> </msub> <mo>×</mo> <mrow class="MJX-TeXAtom-ORD"> <mfrac> <mrow> <mo stretchy="false">(</mo> <mn>0.0254</mn> <mtext> </mtext> <mrow class="MJX-TeXAtom-ORD"> <mtext>m</mtext> </mrow> <mrow class="MJX-TeXAtom-ORD"> <mo>/</mo> </mrow> <mrow class="MJX-TeXAtom-ORD"> <mtext>in</mtext> </mrow> <msup> <mo stretchy="false">)</mo> <mrow class="MJX-TeXAtom-ORD"> <mn>2</mn> </mrow> </msup> </mrow> <mrow> <mo stretchy="false">(</mo> <mn>0.45359237</mn> <mtext> </mtext> <mrow class="MJX-TeXAtom-ORD"> <mtext>kg</mtext> </mrow> <mo>×</mo> <mn>9.80665</mn> <mtext> </mtext> <mrow class="MJX-TeXAtom-ORD"> <mi mathvariant="normal">m</mi> <mrow class="MJX-TeXAtom-ORD"> <mo>/</mo> </mrow> <msup> <mi mathvariant="normal">s</mi> <mrow class="MJX-TeXAtom-ORD"> <mn>2</mn> </mrow> </msup> </mrow> <mo stretchy="false">)</mo> <mrow class="MJX-TeXAtom-ORD"> <mo>/</mo> </mrow> <mrow class="MJX-TeXAtom-ORD"> <mtext>lbf</mtext> </mrow> </mrow> </mfrac> </mrow> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle P_{\text{PSI}}=P_{\text{Pa}}\times {\frac {(0.0254~{\text{m}}/{\text{in}})^{2}}{(0.45359237~{\text{kg}}\times 9.80665~\mathrm {m/s^{2}} )/{\text{lbf}}}}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/a426cfc9567b9438a95758ffcae62c37aa5c5ccc" class="mwe-math-fallback-image-display mw-invert skin-invert" aria-hidden="true" style="vertical-align: -2.671ex; width:50.606ex; height:6.676ex;" alt="{\displaystyle P_{\text{PSI}}=P_{\text{Pa}}\times {\frac {(0.0254~{\text{m}}/{\text{in}})^{2}}{(0.45359237~{\text{kg}}\times 9.80665~\mathrm {m/s^{2}} )/{\text{lbf}}}}}"></span> </p><p>As the pascal is a very small unit relative to industrial pressures, the kilopascal is commonly used. 1000 kPa ≈ 145 lbf/in<sup>2</sup>. </p><p>Approximate conversions (rounded to some arbitrary number of digits, except when denoted by "≡") are shown in the following table. </p> <table class="wikitable"> <caption>Pressure units </caption> <tbody><tr> <th rowspan="2"><style data-mw-deduplicate="TemplateStyles:r1129693374">.mw-parser-output .hlist dl,.mw-parser-output .hlist ol,.mw-parser-output .hlist ul{margin:0;padding:0}.mw-parser-output .hlist dd,.mw-parser-output .hlist dt,.mw-parser-output .hlist li{margin:0;display:inline}.mw-parser-output .hlist.inline,.mw-parser-output .hlist.inline dl,.mw-parser-output .hlist.inline ol,.mw-parser-output .hlist.inline ul,.mw-parser-output .hlist dl dl,.mw-parser-output .hlist dl ol,.mw-parser-output .hlist dl ul,.mw-parser-output .hlist ol dl,.mw-parser-output .hlist ol ol,.mw-parser-output .hlist ol ul,.mw-parser-output .hlist ul dl,.mw-parser-output .hlist ul ol,.mw-parser-output .hlist ul ul{display:inline}.mw-parser-output .hlist .mw-empty-li{display:none}.mw-parser-output .hlist dt::after{content:": "}.mw-parser-output .hlist dd::after,.mw-parser-output .hlist li::after{content:" · ";font-weight:bold}.mw-parser-output .hlist dd:last-child::after,.mw-parser-output .hlist dt:last-child::after,.mw-parser-output .hlist li:last-child::after{content:none}.mw-parser-output .hlist dd dd:first-child::before,.mw-parser-output .hlist dd dt:first-child::before,.mw-parser-output .hlist dd li:first-child::before,.mw-parser-output .hlist dt dd:first-child::before,.mw-parser-output .hlist dt dt:first-child::before,.mw-parser-output .hlist dt li:first-child::before,.mw-parser-output .hlist li dd:first-child::before,.mw-parser-output .hlist li dt:first-child::before,.mw-parser-output .hlist li li:first-child::before{content:" (";font-weight:normal}.mw-parser-output .hlist dd dd:last-child::after,.mw-parser-output .hlist dd dt:last-child::after,.mw-parser-output .hlist dd li:last-child::after,.mw-parser-output .hlist dt dd:last-child::after,.mw-parser-output .hlist dt dt:last-child::after,.mw-parser-output .hlist dt li:last-child::after,.mw-parser-output .hlist li dd:last-child::after,.mw-parser-output .hlist li dt:last-child::after,.mw-parser-output .hlist li li:last-child::after{content:")";font-weight:normal}.mw-parser-output .hlist ol{counter-reset:listitem}.mw-parser-output .hlist ol>li{counter-increment:listitem}.mw-parser-output .hlist ol>li::before{content:" "counter(listitem)"\a0 "}.mw-parser-output .hlist dd ol>li:first-child::before,.mw-parser-output .hlist dt ol>li:first-child::before,.mw-parser-output .hlist li ol>li:first-child::before{content:" ("counter(listitem)"\a0 "}</style><style data-mw-deduplicate="TemplateStyles:r1239400231">.mw-parser-output .navbar{display:inline;font-size:88%;font-weight:normal}.mw-parser-output .navbar-collapse{float:left;text-align:left}.mw-parser-output .navbar-boxtext{word-spacing:0}.mw-parser-output .navbar ul{display:inline-block;white-space:nowrap;line-height:inherit}.mw-parser-output .navbar-brackets::before{margin-right:-0.125em;content:"[ "}.mw-parser-output .navbar-brackets::after{margin-left:-0.125em;content:" ]"}.mw-parser-output .navbar li{word-spacing:-0.125em}.mw-parser-output .navbar a>span,.mw-parser-output .navbar a>abbr{text-decoration:inherit}.mw-parser-output .navbar-mini abbr{font-variant:small-caps;border-bottom:none;text-decoration:none;cursor:inherit}.mw-parser-output .navbar-ct-full{font-size:114%;margin:0 7em}.mw-parser-output .navbar-ct-mini{font-size:114%;margin:0 4em}html.skin-theme-clientpref-night .mw-parser-output .navbar li a abbr{color:var(--color-base)!important}@media(prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .navbar li a abbr{color:var(--color-base)!important}}@media print{.mw-parser-output .navbar{display:none!important}}</style><div class="navbar plainlinks hlist navbar-mini"><ul><li class="nv-view"><a href="/wiki/Template:Pressure_Units" title="Template:Pressure Units"><abbr title="View this template">v</abbr></a></li><li class="nv-talk"><a href="/wiki/Template_talk:Pressure_Units" title="Template talk:Pressure Units"><abbr title="Discuss this template">t</abbr></a></li><li class="nv-edit"><a href="/wiki/Special:EditPage/Template:Pressure_Units" title="Special:EditPage/Template:Pressure Units"><abbr title="Edit this template">e</abbr></a></li></ul></div> </th> <th><a href="/wiki/Pascal_(unit)" title="Pascal (unit)">Pascal</a> </th> <th><a href="/wiki/Bar_(unit)" title="Bar (unit)">Bar</a> </th> <th><a href="/wiki/Technical_atmosphere" class="mw-redirect" title="Technical atmosphere">Technical atmosphere</a> </th> <th><a href="/wiki/Standard_atmosphere_(unit)" title="Standard atmosphere (unit)">Standard atmosphere</a> </th> <th><a href="/wiki/Torr" title="Torr">Torr</a> </th> <th><a href="/wiki/Pounds_per_square_inch" class="mw-redirect" title="Pounds per square inch">Pound per square inch</a> </th></tr> <tr> <th>(Pa) </th> <th>(bar) </th> <th>(at) </th> <th>(atm) </th> <th>(Torr) </th> <th>(lbf/in<sup>2</sup>) </th></tr> <tr style="text-align:center;"> <th>1 Pa </th> <td data-sort-value="" style="background: var(--background-color-interactive, #ececec); color: var(--color-base, inherit); vertical-align: middle; text-align: center;" class="table-na">— </td> <td>1 Pa = <span class="nowrap"><span data-sort-value="6995100000000000000♠"></span>10<sup>−5</sup></span> bar </td> <td>1 Pa = <span class="nowrap"><span data-sort-value="6995101970000000000♠"></span>1.0197<span style="margin-left:0.25em;margin-right:0.15em;">×</span>10<sup>−5</sup></span> at </td> <td>1 Pa = <span class="nowrap"><span data-sort-value="6994986919999999999♠"></span>9.8692<span style="margin-left:0.25em;margin-right:0.15em;">×</span>10<sup>−6</sup></span> atm </td> <td>1 Pa = <span class="nowrap"><span data-sort-value="6997750060000000000♠"></span>7.5006<span style="margin-left:0.25em;margin-right:0.15em;">×</span>10<sup>−3</sup></span> Torr </td> <td>1 Pa = <span class="nowrap"><span data-sort-value="6996145037737730000♠"></span>0.000<span style="margin-left:.25em;">145</span><span style="margin-left:.25em;">037</span><span style="margin-left:.25em;">737</span><span style="margin-left:.25em;">730</span></span> lbf/in<sup>2</sup> </td></tr> <tr style="text-align:center;"> <th>1 bar </th> <td><span class="nowrap"><span data-sort-value="7005100000000000000♠"></span>10<sup>5</sup></span> </td> <td data-sort-value="" style="background: var(--background-color-interactive, #ececec); color: var(--color-base, inherit); vertical-align: middle; text-align: center;" class="table-na">— </td> <td>= <span class="nowrap"><span data-sort-value="7000101970000000000♠"></span>1.0197</span> </td> <td>= <span class="nowrap"><span data-sort-value="6999986920000000000♠"></span>0.986<span style="margin-left:.25em;">92</span></span> </td> <td>= <span class="nowrap"><span data-sort-value="7002750060000000000♠"></span>750.06</span> </td> <td>= <span class="nowrap"><span data-sort-value="7001145037737730220♠"></span>14.503<span style="margin-left:.25em;">773</span><span style="margin-left:.25em;">773</span><span style="margin-left:.25em;">022</span></span> </td></tr> <tr style="text-align:center;"> <th>1 at </th> <td><span class="nowrap"><span data-sort-value="7004980665000000000♠"></span>98<span style="margin-left:.25em;">066</span>.5</span> </td> <td><span class="nowrap"><span data-sort-value="6999980665000000000♠"></span>0.980<span style="margin-left:.25em;">665</span></span> </td> <td data-sort-value="" style="background: var(--background-color-interactive, #ececec); color: var(--color-base, inherit); vertical-align: middle; text-align: center;" class="table-na">— </td> <td><span class="nowrap"><span data-sort-value="6999967841105354100♠"></span>0.967<span style="margin-left:.25em;">841</span><span style="margin-left:.25em;">105</span><span style="margin-left:.25em;">3541</span></span> </td> <td><span class="nowrap"><span data-sort-value="7002735559240100000♠"></span>735.559<span style="margin-left:.25em;">2401</span></span> </td> <td><span class="nowrap"><span data-sort-value="7001142233433071203♠"></span>14.223<span style="margin-left:.25em;">343</span><span style="margin-left:.25em;">307</span><span style="margin-left:.25em;">1203</span></span> </td></tr> <tr style="text-align:center;"> <th>1 atm </th> <td>≡ <span class="nowrap"><span data-sort-value="7005101325000000000♠"></span>101<span style="margin-left:.25em;">325</span></span> </td> <td>≡ <span class="nowrap"><span data-sort-value="7000101325000000000♠"></span>1.013<span style="margin-left:.25em;">25</span></span> </td> <td><span class="nowrap"><span data-sort-value="7000103319999999999♠"></span>1.0332</span> </td> <td data-sort-value="" style="background: var(--background-color-interactive, #ececec); color: var(--color-base, inherit); vertical-align: middle; text-align: center;" class="table-na">— </td> <td>760 </td> <td><span class="nowrap"><span data-sort-value="7001146959487755142♠"></span>14.695<span style="margin-left:.25em;">948</span><span style="margin-left:.25em;">775</span><span style="margin-left:.25em;">5142</span></span> </td></tr> <tr style="text-align:center;"> <th>1 Torr </th> <td><span class="nowrap"><span data-sort-value="7002133322368421000♠"></span>133.322<span style="margin-left:.25em;">368</span><span style="margin-left:.25em;">421</span></span> </td> <td><span class="nowrap"><span data-sort-value="6997133322400000000♠"></span>0.001<span style="margin-left:.25em;">333</span><span style="margin-left:.25em;">224</span></span> </td> <td><span class="nowrap"><span data-sort-value="6997135951000000000♠"></span>0.001<span style="margin-left:.25em;">359</span><span style="margin-left:.25em;">51</span></span> </td> <td><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">⁠<span class="tion"><span class="num">1</span><span class="sr-only">/</span><span class="den">760</span></span>⁠</span> ≈ <span class="nowrap"><span data-sort-value="6997131578900000000♠"></span>0.001<span style="margin-left:.25em;">315</span><span style="margin-left:.25em;">789</span></span> </td> <td data-sort-value="" style="background: var(--background-color-interactive, #ececec); color: var(--color-base, inherit); vertical-align: middle; text-align: center;" class="table-na">— </td> <td><span class="nowrap"><span data-sort-value="6998193367750000000♠"></span>0.019<span style="margin-left:.25em;">336</span><span style="margin-left:.25em;">775</span></span> </td></tr> <tr style="text-align:center;"> <th>1 lbf/in<sup>2</sup> </th> <td><span class="nowrap"><span data-sort-value="7003689475729316800♠"></span>6<span style="margin-left:.25em;">894</span>.757<span style="margin-left:.25em;">293</span><span style="margin-left:.25em;">168</span></span> </td> <td><span class="nowrap"><span data-sort-value="6998689475730000000♠"></span>0.068<span style="margin-left:.25em;">947</span><span style="margin-left:.25em;">573</span></span> </td> <td><span class="nowrap"><span data-sort-value="6998703069580000000♠"></span>0.070<span style="margin-left:.25em;">306</span><span style="margin-left:.25em;">958</span></span> </td> <td><span class="nowrap"><span data-sort-value="6998680459640000000♠"></span>0.068<span style="margin-left:.25em;">045</span><span style="margin-left:.25em;">964</span></span> </td> <td><span class="nowrap"><span data-sort-value="7001517149325720000♠"></span>51.714<span style="margin-left:.25em;">932</span><span style="margin-left:.25em;">572</span></span> </td> <td data-sort-value="" style="background: var(--background-color-interactive, #ececec); color: var(--color-base, inherit); vertical-align: middle; text-align: center;" class="table-na">— </td></tr></tbody></table> <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=Pound_per_square_inch&action=edit&section=4" title="Edit section: See also"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a href="/wiki/Conversion_of_units#Pressure_or_mechanical_stress" title="Conversion of units">Conversion of units: Pressure or mechanical stress</a></li> <li><a href="/wiki/Pressure_units" class="mw-redirect" title="Pressure units">Pressure: Units</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=Pound_per_square_inch&action=edit&section=5" 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"><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">IEEE Standard Letter Symbols for Units of Measurement (SI Units, Customary Inch-Pound Units, and Certain Other Units), IEEE Std 260.1™-2004 (Revision of IEEE Std 260.1-1993)</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"><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 class="citation web cs1"><a rel="nofollow" class="external text" href="https://web.archive.org/web/20110801114928/http://www.uasinc.com/InfoGlossaryP.aspx">"Glossary of Industrial Air Cleaning Technology"</a>. <i>United Air Specialists, Inc</i>. Archived from <a rel="nofollow" class="external text" href="http://www.uasinc.com/InfoGlossaryP.aspx">the original</a> on August 1, 2011.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=United+Air+Specialists%2C+Inc&rft.atitle=Glossary+of+Industrial+Air+Cleaning+Technology&rft_id=http%3A%2F%2Fwww.uasinc.com%2FInfoGlossaryP.aspx&rfr_id=info%3Asid%2Fen.wikipedia.org%3APound+per+square+inch" 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.dynisco.com/stuff/contentmgr/files/1/162fe0347e667528bd874845e66a40ef/pdf/gageabspress.pdf">"Gage v. Sealed v. Absolute pressure"</a> <span class="cs1-format">(PDF)</span>. <i>Dynisco</i>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=Dynisco&rft.atitle=Gage+v.+Sealed+v.+Absolute+pressure&rft_id=http%3A%2F%2Fwww.dynisco.com%2Fstuff%2Fcontentmgr%2Ffiles%2F1%2F162fe0347e667528bd874845e66a40ef%2Fpdf%2Fgageabspress.pdf&rfr_id=info%3Asid%2Fen.wikipedia.org%3APound+per+square+inch" 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"><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.steelforge.com/literature/metal-tidbits/tensile-strength/">"Tensile Strength of Steel and Other Metals"</a>. All Metals & Forge Group. 18 April 2013<span class="reference-accessdate">. Retrieved <span class="nowrap">2016-07-26</span></span>. <q>A metal's yield strength and ultimate tensile strength values are expressed in tons per square inch, pounds per square inch or thousand pounds (KSI) per square inch. For example, a tensile strength of a steel that can withstand 40,000 pounds of force per square inch may be expressed as 40,000 PSI or 40 KSI (with K being the denominator for thousands of pounds). The tensile strength of steel may also be shown in MPa, or megapascal.</q></cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=Tensile+Strength+of+Steel+and+Other+Metals&rft.pub=All+Metals+%26+Forge+Group&rft.date=2013-04-18&rft_id=http%3A%2F%2Fwww.steelforge.com%2Fliterature%2Fmetal-tidbits%2Ftensile-strength%2F&rfr_id=info%3Asid%2Fen.wikipedia.org%3APound+per+square+inch" class="Z3988"></span></span> </li> <li id="cite_note-5"><span class="mw-cite-backlink"><b><a href="#cite_ref-5">^</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/20161216151259/http://www.eitexam.com/Search2/Mechanics/PropertiesEq.asp">"An example of the use of Mpsi in mechanics for the elastic moduli of several materials"</a>. Archived from <a rel="nofollow" class="external text" href="http://www.eitexam.com/Search2/Mechanics/PropertiesEq.asp">the original</a> on 2016-12-16<span class="reference-accessdate">. Retrieved <span class="nowrap">2015-06-06</span></span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=An+example+of+the+use+of+Mpsi+in+mechanics+for+the+elastic+moduli+of+several+materials&rft_id=http%3A%2F%2Fwww.eitexam.com%2FSearch2%2FMechanics%2FPropertiesEq.asp&rfr_id=info%3Asid%2Fen.wikipedia.org%3APound+per+square+inch" class="Z3988"></span></span> </li> <li id="cite_note-6"><span class="mw-cite-backlink"><b><a href="#cite_ref-6">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation book cs1"><i>BS 350: Part 1: 1974 – Conversion factors and tables</i>. <a href="/wiki/British_Standards_Institution" class="mw-redirect" title="British Standards Institution">British Standards Institution</a>. 1974. p. 49. <a href="/wiki/ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a> <a href="/wiki/Special:BookSources/0-580-08471-X" title="Special:BookSources/0-580-08471-X"><bdi>0-580-08471-X</bdi></a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=BS+350%3A+Part+1%3A+1974+%E2%80%93+Conversion+factors+and+tables&rft.pages=49&rft.pub=British+Standards+Institution&rft.date=1974&rft.isbn=0-580-08471-X&rfr_id=info%3Asid%2Fen.wikipedia.org%3APound+per+square+inch" 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 book cs1"><a rel="nofollow" class="external text" href="https://nvlpubs.nist.gov/nistpubs/Legacy/SP/nistspecialpublication811e2008.pdf"><i>NIST Special Publication 811 – Guide for the Use of the International System of Units (SI)</i></a> <span class="cs1-format">(PDF)</span>. <a href="/wiki/National_Institute_of_Standards_and_Technology" title="National Institute of Standards and Technology">National Institute of Standards and Technology</a>. 2008. p. 66.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=NIST+Special+Publication+811+%E2%80%93+Guide+for+the+Use+of+the+International+System+of+Units+%28SI%29&rft.pages=66&rft.pub=National+Institute+of+Standards+and+Technology&rft.date=2008&rft_id=https%3A%2F%2Fnvlpubs.nist.gov%2Fnistpubs%2FLegacy%2FSP%2Fnistspecialpublication811e2008.pdf&rfr_id=info%3Asid%2Fen.wikipedia.org%3APound+per+square+inch" 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=Pound_per_square_inch&action=edit&section=6" title="Edit section: External links"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a rel="nofollow" class="external text" href="http://www.aeroconsystems.com/electronics/Pressure_transducer_basics/Transducer_primer.htm">Pressure measurement primer</a></li> <li><a rel="nofollow" class="external text" href="http://www.imperialtometric.com/conversion_en.htm">Online pressure conversions</a></li></ul> <div class="navbox-styles"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1129693374"><style data-mw-deduplicate="TemplateStyles:r1236075235">.mw-parser-output .navbox{box-sizing:border-box;border:1px solid #a2a9b1;width:100%;clear:both;font-size:88%;text-align:center;padding:1px;margin:1em auto 0}.mw-parser-output .navbox .navbox{margin-top:0}.mw-parser-output .navbox+.navbox,.mw-parser-output .navbox+.navbox-styles+.navbox{margin-top:-1px}.mw-parser-output .navbox-inner,.mw-parser-output .navbox-subgroup{width:100%}.mw-parser-output .navbox-group,.mw-parser-output .navbox-title,.mw-parser-output .navbox-abovebelow{padding:0.25em 1em;line-height:1.5em;text-align:center}.mw-parser-output .navbox-group{white-space:nowrap;text-align:right}.mw-parser-output .navbox,.mw-parser-output .navbox-subgroup{background-color:#fdfdfd}.mw-parser-output .navbox-list{line-height:1.5em;border-color:#fdfdfd}.mw-parser-output .navbox-list-with-group{text-align:left;border-left-width:2px;border-left-style:solid}.mw-parser-output tr+tr>.navbox-abovebelow,.mw-parser-output tr+tr>.navbox-group,.mw-parser-output tr+tr>.navbox-image,.mw-parser-output tr+tr>.navbox-list{border-top:2px solid #fdfdfd}.mw-parser-output .navbox-title{background-color:#ccf}.mw-parser-output .navbox-abovebelow,.mw-parser-output .navbox-group,.mw-parser-output .navbox-subgroup .navbox-title{background-color:#ddf}.mw-parser-output .navbox-subgroup .navbox-group,.mw-parser-output .navbox-subgroup .navbox-abovebelow{background-color:#e6e6ff}.mw-parser-output .navbox-even{background-color:#f7f7f7}.mw-parser-output .navbox-odd{background-color:transparent}.mw-parser-output .navbox .hlist td dl,.mw-parser-output .navbox .hlist td ol,.mw-parser-output .navbox .hlist td ul,.mw-parser-output .navbox td.hlist dl,.mw-parser-output .navbox td.hlist ol,.mw-parser-output .navbox td.hlist ul{padding:0.125em 0}.mw-parser-output .navbox .navbar{display:block;font-size:100%}.mw-parser-output .navbox-title .navbar{float:left;text-align:left;margin-right:0.5em}body.skin--responsive .mw-parser-output .navbox-image img{max-width:none!important}@media print{body.ns-0 .mw-parser-output .navbox{display:none!important}}</style></div><div role="navigation" class="navbox" aria-labelledby="Imperial_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:Imperial_units" title="Template:Imperial units"><abbr title="View this template">v</abbr></a></li><li class="nv-talk"><a href="/wiki/Template_talk:Imperial_units" title="Template talk:Imperial units"><abbr title="Discuss this template">t</abbr></a></li><li class="nv-edit"><a href="/wiki/Special:EditPage/Template:Imperial_units" title="Special:EditPage/Template:Imperial units"><abbr title="Edit this template">e</abbr></a></li></ul></div><div id="Imperial_units" style="font-size:114%;margin:0 4em"><a href="/wiki/Imperial_units" title="Imperial units">Imperial 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 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'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 href="/wiki/Acre" title="Acre">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 href="/wiki/Acre" title="Acre">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>    </div><noscript><img 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