{"id":55806,"date":"2015-01-17T11:59:27","date_gmt":"2015-01-17T09:59:27","guid":{"rendered":"http:\/\/wpcalc.com\/?p=55806"},"modified":"2026-09-28T09:23:32","modified_gmt":"2026-09-28T06:23:32","slug":"inductance","status":"publish","type":"post","link":"https:\/\/wpcalc.com\/en\/converters\/inductance\/","title":{"rendered":"Inductance Converter"},"content":{"rendered":"<section class=\"not-prose calculator-box\" aria-labelledby=\"calculator-title\"><div class=\"flex items-baseline sm:items-center justify-between gap-2 sm:gap-3\"><div class=\"flex flex-col sm:flex-row sm:items-center gap-2\"><span class=\"icon icon-calculator text-primary-700! text-base! dark:text-primary-300!\" aria-hidden=\"true\"><\/span><h2 id=\"calculator-title\" class=\"text-lg font-display font-bold\">Convert Inductance Between Units<\/h2><\/div><div class=\"calcdash-favorite group\">\n  <button type=\"button\" class=\"favorite\" id=\"favorite\" data-favorite-id=\"55806\" data-favorite-title=\"Inductance\" data-favorite-url=\"https:\/\/wpcalc.com\/en\/converters\/inductance\/\" data-favorite-excerpt=\"Convert inductance between henries, millihenries, microhenries, nanohenries, abhenries, and stathenries. Enter a value, then choose the units to convert from and to.\" aria-label=\"Add to Favorites\" data-favorite-icon=\"icon icon-physic\">\n    <span class=\"icon icon-shape-star-empty\" aria-hidden=\"true\"><\/span>\n  <\/button>\n  <div class=\"calcdash-favorite__tip\" aria-hidden=\"true\">\n   <span class=\"favorite-tooltip\" id=\"favorite-tooltip\"><\/span>\n  <\/div>\n  <span class=\"sr-only\" role=\"status\" id=\"favorite-status\"><\/span>\n<\/div><\/div><form action=\"https:\/\/wpcalc.com\/en\/converters\/inductance\/\" method=\"POST\" class=\"calculator\" id=\"calculator-55806\" data-post=\"55806\"><fieldset class=\"fieldset-input\"><legend class=\"sr-only\">Input Fields<\/legend><div class=\"field is-single\" id=\"input-1\"><label for=\"field-1\">Inductance value<\/label><input type=\"text\" name=\"inductance_value\" id=\"field-1\" aria-describedby=\"calc-unit-1 calc-info-1\" data-number inputmode=\"decimal\" autocomplete=\"off\" spellcheck=\"false\" min=\"0\" value=\"1\"\/><div class=\"unit\" id=\"calc-unit-1\"><\/div><small id=\"calc-info-1\">Enter the inductance value to convert<\/small><\/div><div class=\"field\" id=\"input-2\"><label for=\"field-2\">From unit<\/label><div class=\"grid grid-cols-1\"><select id=\"field-2\" name=\"from_unit\"><option value=\"H\">Henry (H)<\/option><option value=\"mH\">Millihenry (mH)<\/option><option value=\"\u00b5H\">Microhenry (\u00b5H)<\/option><option value=\"nH\">Nanohenry (nH)<\/option><option value=\"abH\">Abhenry (abH)<\/option><option value=\"statH\">Stathenry (statH)<\/option><\/select><svg class=\"pointer-events-none col-start-1 row-start-1 mr-2 size-5 self-center justify-self-end text-gray-500 sm:size-4\" viewBox=\"0 0 16 16\" fill=\"currentColor\" aria-hidden=\"true\" data-slot=\"icon\">\n              <path fill-rule=\"evenodd\" d=\"M4.22 6.22a.75.75 0 0 1 1.06 0L8 8.94l2.72-2.72a.75.75 0 1 1 1.06 1.06l-3.25 3.25a.75.75 0 0 1-1.06 0L4.22 7.28a.75.75 0 0 1 0-1.06Z\" clip-rule=\"evenodd\" \/>\n            <\/svg><\/div><\/div><div class=\"field\" id=\"input-3\"><label for=\"field-3\">To unit<\/label><div class=\"grid grid-cols-1\"><select id=\"field-3\" name=\"to_unit\"><option value=\"H\">Henry (H)<\/option><option value=\"mH\">Millihenry (mH)<\/option><option value=\"\u00b5H\">Microhenry (\u00b5H)<\/option><option value=\"nH\">Nanohenry (nH)<\/option><option value=\"abH\">Abhenry (abH)<\/option><option value=\"statH\">Stathenry (statH)<\/option><\/select><svg class=\"pointer-events-none col-start-1 row-start-1 mr-2 size-5 self-center justify-self-end text-gray-500 sm:size-4\" viewBox=\"0 0 16 16\" fill=\"currentColor\" aria-hidden=\"true\" data-slot=\"icon\">\n              <path fill-rule=\"evenodd\" d=\"M4.22 6.22a.75.75 0 0 1 1.06 0L8 8.94l2.72-2.72a.75.75 0 1 1 1.06 1.06l-3.25 3.25a.75.75 0 0 1-1.06 0L4.22 7.28a.75.75 0 0 1 0-1.06Z\" clip-rule=\"evenodd\" \/>\n            <\/svg><\/div><\/div><\/fieldset><div class=\"buttons\"><button type=\"submit\" data-text=\"Re-Calculate\" id=\"calculate-button\" data-post=\"55806\">Calculate<\/button><button type=\"reset\">Reset<\/button><\/div><div class=\"field is-checkbox hidden!\" id=\"field-auto-calc\"><input type=\"checkbox\" id=\"auto-calc\"><label for=\"auto-calc\">Calculate automatically<\/label><small>If enabled, the result will update automatically when you change any value.<\/small><\/div><div class=\"fieldset-result is-hidden\" aria-labelledby=\"result-title\" aria-live=\"polite\" role=\"region\"> <h3 class=\"result-title bg-gradient-to-r from-primary-50 to-gray-50 dark:from-primary-900 dark:to-gray-800\" id=\"result-title\"><span class=\"icon icon-s-pulse\" aria-hidden=\"true\"><\/span> Your Results<\/h3><div class=\"result-box\"><div class=\"field-result\" id=\"output-1\"><span class=\"field-title\"><span>Converted Inductance<\/span><\/span><span class=\"field-value\" id=\"result-1\"><\/span><button type=\"button\" class=\"copy-result\" data-tooltip=\"Copy Result\" aria-label=\"Copy Result\"><span class=\"copy-icon icon icon-document-copy\" aria-hidden=\"true\"><\/span><\/button><\/div><\/div><div class=\"result-actions\"><button type=\"button\" class=\"copy-link\"><svg viewBox=\"0 0 20 20\" fill=\"currentColor\" aria-hidden=\"true\"><path d=\"M12.232 4.232a2.5 2.5 0 0 1 3.536 3.536l-1.225 1.224a.75.75 0 0 0 1.061 1.06l1.224-1.224a4 4 0 0 0-5.656-5.656l-3 3a4 4 0 0 0 .225 5.865.75.75 0 0 0 .977-1.138 2.5 2.5 0 0 1-.142-3.667l3-3Z\"\/><path d=\"M11.603 7.963a.75.75 0 0 0-.977 1.138 2.5 2.5 0 0 1 .142 3.667l-3 3a2.5 2.5 0 0 1-3.536-3.536l1.225-1.224a.75.75 0 0 0-1.061-1.06l-1.224 1.224a4 4 0 1 0 5.656 5.656l3-3a4 4 0 0 0-.225-5.865Z\"\/><\/svg><span class=\"copy-link__text\">Copy link to this calculation<\/span><\/button><span class=\"sr-only\" role=\"status\" id=\"copy-link-status\"><\/span><\/div><\/div><a href=\"#respond\" class=\"hidden transition-opacity duration-300 opacity-0 w-50 text-sm justify-center items-center gap-2 px-4 py-2 rounded bg-gray-200 text-gray-700 hover:bg-gray-300\" id=\"leave-comment\"><span class=\"icon icon-comments\" aria-hidden=\"true\"><\/span>Leave a Comment<\/a><\/form><\/section><section id=\"calc-reactions\" class=\"not-prose hidden my-12 bg-gradient-to-r from-primary-50 to-gray-50 border border-indigo-100 rounded-xl px-6 py-4 shadow-sm\" data-post=\"55806\" aria-live=\"polite\" aria-labelledby=\"calc-reactions-title\"><p id=\"calc-reactions-title\" class=\"text-sm text-gray-500 text-center mb-2\">How did this result make you feel?<\/p><div role=\"group\" aria-labelledby=\"calc-reactions-title\" class=\"grid grid-cols-3 sm:flex sm:flex-row sm:justify-around gap-4 sm:items-center sm:flex-wrap\"><button type=\"button\" aria-pressed=\"false\" class=\"reaction-btn flex flex-col items-center gap-1 text-sm text-gray-700 hover:text-primary-600 cursor-pointer transition-transform hover:scale-105\" data-reaction=\"like\"><span class=\"reaction-count\" data-reaction-count=\"like\">0<\/span><span class=\"reaction text-3xl\" aria-hidden=\"true\">\ud83d\ude00 <\/span><span class=\"reaction-description font-medium\">Like <\/span><\/button><button type=\"button\" aria-pressed=\"false\" class=\"reaction-btn flex flex-col items-center gap-1 text-sm text-gray-700 hover:text-primary-600 cursor-pointer transition-transform hover:scale-105\" data-reaction=\"helpful\"><span class=\"reaction-count\" data-reaction-count=\"helpful\">0<\/span><span class=\"reaction text-3xl\" aria-hidden=\"true\">\ud83d\udca1 <\/span><span class=\"reaction-description font-medium\">Helpful <\/span><\/button><button type=\"button\" aria-pressed=\"false\" class=\"reaction-btn flex flex-col items-center gap-1 text-sm text-gray-700 hover:text-primary-600 cursor-pointer transition-transform hover:scale-105\" data-reaction=\"confused\"><span class=\"reaction-count\" data-reaction-count=\"confused\">0<\/span><span class=\"reaction text-3xl\" aria-hidden=\"true\">\ud83d\ude15 <\/span><span class=\"reaction-description font-medium\">Confused <\/span><\/button><button type=\"button\" aria-pressed=\"false\" class=\"reaction-btn flex flex-col items-center gap-1 text-sm text-gray-700 hover:text-primary-600 cursor-pointer transition-transform hover:scale-105\" data-reaction=\"disappointed\"><span class=\"reaction-count\" data-reaction-count=\"disappointed\">0<\/span><span class=\"reaction text-3xl\" aria-hidden=\"true\">\ud83d\ude1e <\/span><span class=\"reaction-description font-medium\">Disappointed <\/span><\/button><button type=\"button\" aria-pressed=\"false\" class=\"reaction-btn flex flex-col items-center gap-1 text-sm text-gray-700 hover:text-primary-600 cursor-pointer transition-transform hover:scale-105\" data-reaction=\"inaccurate\"><span class=\"reaction-count\" data-reaction-count=\"inaccurate\">0<\/span><span class=\"reaction text-3xl\" aria-hidden=\"true\">\u274c <\/span><span class=\"reaction-description font-medium\">Inaccurate <\/span><\/button><\/div><div id=\"reaction-message\" class=\"hidden mt-8 rounded-md border border-primary-100 bg-white\/50 backdrop-blur-sm px-4 py-2 text-sm text-center shadow-sm\"><\/div><\/section><div class=\"calcdash-ad not-prose calcdash-ad--calc_result calcdash-ad--in-article\"><ins class=\"adsbygoogle\" style=\"display:block\" data-ad-client=\"ca-pub-1721569815777345\" data-ad-slot=\"6317458308\" data-ad-layout=\"in-article\" data-ad-format=\"fluid\"><\/ins><script>(adsbygoogle = window.adsbygoogle || []).push({});<\/script><\/div>\n<style id=\"wpcoderpro-inline-1\">.formula-box {\r\n\tborder-bottom: none !important;\r\n}<\/style><section class=\"formula-box\" aria-labelledby=\"formula-title\">\r\n\t<div id=\"formula-title\" class=\"not-prose font-display mb-4\"><span class=\"icon icon-formula\" aria-hidden=\"true\"><\/span><h2>Inductance Conversion Formula<\/h2><\/div>\r\n\t<figure class=\"not-prose formula\">\r\n\t\t<figcaption class=\"formula-title\">Formula<\/figcaption>\r\n\t\t<div class=\"text-base text-gray-800\" id=\"formula\">\n\\[L_{\\text{to}}=L_{\\text{from}}\\times\\frac{f_{\\text{from}}}{f_{\\text{to}}}\\]\n<\/div>\r\n\t<\/figure>\r\n\t<\/p>\n<p><strong>Where:<\/strong><\/p>\n<ul>\n<li>\\(L_{\\text{from}}\\) \u2014 the entered inductance in the selected From unit<\/li>\n<li>\\(L_{\\text{to}}\\) \u2014 the converted inductance in the selected To unit<\/li>\n<li>\\(f_{\\text{from}}\\) and \\(f_{\\text{to}}\\) \u2014 the number of henries in one of each selected unit<\/li>\n<\/ul>\n<p>The converter first expresses the entered value in henries, then divides by the henries-per-unit factor for the destination unit. This changes the unit, not the physical inductance.<\/p>\n<p>\r\n<\/section>\n<style id=\"wpcoderpro-inline-459\">.calculation-box {\r\n\tborder-bottom: none !important;\r\n}<\/style><section id=\"calculation\" class=\"calculation-box\" aria-labelledby=\"calculation-title\">\r\n\t<div id=\"calculation-title\" class=\"not-prose font-display\"><span class=\"icon icon-unordered-list\" aria-hidden=\"true\"><\/span><h2>Inductance Conversion \u2013 Calculation Example<\/h2><\/div>\r\n\r\n<\/p>\n<p><strong>Example:<\/strong> convert the default value of 1 henry (H) to millihenries (mH).<\/p>\n<p>One henry equals 1 H, while one millihenry equals \\(10^{-3}\\) H:<\/p>\n<p>\\[L_{\\text{to}}=1\\times\\frac{1}{10^{-3}}=1{,}000\\ \\text{mH}\\]<\/p>\n<p><strong>Result:<\/strong> 1 H = 1,000 mH.<\/p>\n<p>\n\r\n<\/section>\n<h2>How to use the inductance converter<\/h2>\n<ol>\n<li>Enter a nonnegative number in <strong>Inductance value<\/strong>. Use the number as written on your component, drawing, or specification.<\/li>\n<li>Choose its current unit in <strong>From unit<\/strong>.<\/li>\n<li>Choose the unit you need in <strong>To unit<\/strong>.<\/li>\n<li>Read <strong>Converted Inductance<\/strong>. Its unit symbol appears after the number. To check another conversion, change either unit or the entered value.<\/li>\n<\/ol>\n<p>For example, to express an inductor labeled 470 \u00b5H in millihenries, enter 470, select Microhenry (\u00b5H) as the From unit, and select Millihenry (mH) as the To unit. The result is 0.47 mH.<\/p>\n<h2>What inductance measures<\/h2>\n<p>Inductance describes how a circuit element responds to a changing electric current. A changing current produces a changing magnetic field, which induces a voltage that opposes the change. Inductors and transformer windings are common examples of components for which inductance is an important specification.<\/p>\n<p>The henry (H) is the SI <em>derived<\/em> unit of inductance. One henry corresponds to an induced voltage of one volt when current changes at one ampere per second, under the usual self-inductance convention. Component values are often much smaller than a henry, so datasheets commonly use millihenries (mH), microhenries (\u00b5H), or nanohenries (nH).<\/p>\n<p>A larger number after conversion does not mean greater inductance: 1 H, 1,000 mH, and 1,000,000 \u00b5H describe the same value. Converting units helps align a datasheet value with the units used in a schematic or calculation. It does not determine how an inductor will perform in a particular circuit.<\/p>\n<p>In AC analysis, inductive reactance depends on both inductance and frequency: \\(X_L=2\\pi fL\\), with \\(L\\) expressed in henries. After converting a component value here, use a consistent frequency unit when working with the <a href=\"https:\/\/wpcalc.com\/en\/converters\/frequency\/\">frequency converter<\/a>. For quantities such as winding current or linked magnetic flux, see the <a href=\"https:\/\/wpcalc.com\/en\/converters\/electric-current\/\">electric current converter<\/a> and <a href=\"https:\/\/wpcalc.com\/en\/converters\/magnetic-flux\/\">magnetic flux converter<\/a>.<\/p>\n<h2>Inductance units at a glance<\/h2>\n<p>Each factor below gives the number of henries in one unit. Multiply a value by its factor to express it in henries; divide a value in henries by the factor to obtain that unit.<\/p>\n<table>\n<thead>\n<tr>\n<th>Unit<\/th>\n<th>Symbol<\/th>\n<th>Henries per unit<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Henry<\/td>\n<td>H<\/td>\n<td>\\(1\\)<\/td>\n<\/tr>\n<tr>\n<td>Millihenry<\/td>\n<td>mH<\/td>\n<td>\\(10^{-3}\\)<\/td>\n<\/tr>\n<tr>\n<td>Microhenry<\/td>\n<td>\u00b5H<\/td>\n<td>\\(10^{-6}\\)<\/td>\n<\/tr>\n<tr>\n<td>Nanohenry<\/td>\n<td>nH<\/td>\n<td>\\(10^{-9}\\)<\/td>\n<\/tr>\n<tr>\n<td>Abhenry<\/td>\n<td>abH<\/td>\n<td>\\(10^{-9}\\)<\/td>\n<\/tr>\n<tr>\n<td>Stathenry<\/td>\n<td>statH<\/td>\n<td>approximately \\(8.98755179\\times10^{11}\\)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Abhenry and stathenry are units from different CGS electromagnetic and electrostatic unit systems, respectively. One abhenry equals one nanohenry, although the names come from different systems. A stathenry is much larger than a henry; check the selected unit carefully when converting historical data.<\/p>\n<h2>Assumptions and practical limits<\/h2>\n<p>This is a unit converter, not an inductor model. It assumes that the number entered is an inductance value already known in the selected From unit. It does not account for winding resistance, core saturation, temperature, component tolerance, or changes in effective inductance with frequency and operating conditions. If a datasheet gives several inductance values under different test conditions, choose the one relevant to your application before converting it.<\/p>\n<p>The converter uses approximately \\(8.98755179\\times10^{11}\\) H per statH. Results involving stathenries therefore inherit that approximation. The displayed answer is also rounded to 10 decimal places: a very small nonzero result in H may appear as zero. If that happens, select a smaller destination unit, such as nH, to see a more useful number.<\/p>\n<p>Keep prefixes and symbols distinct when copying a result. In particular, mH means millihenries and \u00b5H means microhenries; a factor of 1,000 separates them. For calculations using magnetic material properties, convert those quantities separately\u2014for example, with the <a href=\"https:\/\/wpcalc.com\/en\/converters\/permeability\/\">permeability converter<\/a>\u2014rather than treating inductance and permeability as interchangeable.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Convert inductance between henries, millihenries, microhenries, nanohenries, abhenries, and stathenries. Enter a value, then choose the units to convert from and to.<\/p>\n","protected":false},"author":70,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[3],"tags":[34],"class_list":["post-55806","post","type-post","status-publish","format-standard","hentry","category-converters","tag-physics-units"],"acf":[],"_links":{"self":[{"href":"https:\/\/wpcalc.com\/en\/wp-json\/wp\/v2\/posts\/55806","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/wpcalc.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/wpcalc.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/wpcalc.com\/en\/wp-json\/wp\/v2\/users\/70"}],"replies":[{"embeddable":true,"href":"https:\/\/wpcalc.com\/en\/wp-json\/wp\/v2\/comments?post=55806"}],"version-history":[{"count":3,"href":"https:\/\/wpcalc.com\/en\/wp-json\/wp\/v2\/posts\/55806\/revisions"}],"predecessor-version":[{"id":65279,"href":"https:\/\/wpcalc.com\/en\/wp-json\/wp\/v2\/posts\/55806\/revisions\/65279"}],"wp:attachment":[{"href":"https:\/\/wpcalc.com\/en\/wp-json\/wp\/v2\/media?parent=55806"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/wpcalc.com\/en\/wp-json\/wp\/v2\/categories?post=55806"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/wpcalc.com\/en\/wp-json\/wp\/v2\/tags?post=55806"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}