{"id":55794,"date":"2014-12-11T10:56:01","date_gmt":"2014-12-11T08:56:01","guid":{"rendered":"http:\/\/wpcalc.com\/?p=55794"},"modified":"2026-09-28T09:16:28","modified_gmt":"2026-09-28T06:16:28","slug":"electric-charge","status":"publish","type":"post","link":"https:\/\/wpcalc.com\/en\/converters\/electric-charge\/","title":{"rendered":"Electric Charge 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 Electric Charge Between Units<\/h2><\/div><div class=\"calcdash-favorite group\">\n  <button type=\"button\" class=\"favorite\" id=\"favorite\" data-favorite-id=\"55794\" data-favorite-title=\"Electric Charge\" data-favorite-url=\"https:\/\/wpcalc.com\/en\/converters\/electric-charge\/\" data-favorite-excerpt=\"Convert electric charge between coulombs, millicoulombs, microcoulombs, nanocoulombs, and ampere-hours. Enter a value, then select the From unit and To unit.\" 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\/electric-charge\/\" method=\"POST\" class=\"calculator\" id=\"calculator-55794\" data-post=\"55794\"><fieldset class=\"fieldset-input\"><legend class=\"sr-only\">Input Fields<\/legend><div class=\"field is-single\" id=\"input-1\"><label for=\"field-1\">Electric charge value<\/label><input type=\"text\" name=\"electric_charge_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 electric charge 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=\"C\">Coulomb (C)<\/option><option value=\"mC\">Millicoulomb (mC)<\/option><option value=\"\u00b5C\">Microcoulomb (\u00b5C)<\/option><option value=\"nC\">Nanocoulomb (nC)<\/option><option value=\"Ah\">Ampere-hour (Ah)<\/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=\"C\">Coulomb (C)<\/option><option value=\"mC\">Millicoulomb (mC)<\/option><option value=\"\u00b5C\">Microcoulomb (\u00b5C)<\/option><option value=\"nC\">Nanocoulomb (nC)<\/option><option value=\"Ah\">Ampere-hour (Ah)<\/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=\"55794\">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 Electric Charge<\/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=\"55794\" 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>Electric Charge 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\\[Q_{\\mathrm{to}}=Q_{\\mathrm{from}}\\times\\frac{f_{\\mathrm{from}}}{f_{\\mathrm{to}}}\\]\n<\/div>\r\n\t<\/figure>\r\n\t<\/p>\n<p><strong>Where:<\/strong><\/p>\n<ul>\n<li>\\(Q_{\\mathrm{from}}\\) \u2014 the entered electric charge in the selected From unit<\/li>\n<li>\\(Q_{\\mathrm{to}}\\) \u2014 the converted electric charge in the selected To unit<\/li>\n<li>\\(f_{\\mathrm{from}}\\) and \\(f_{\\mathrm{to}}\\) \u2014 the number of coulombs per unit for the selected From unit and To unit<\/li>\n<\/ul>\n<p>The calculator converts the entered value to coulombs, then divides by the number of coulombs in one target unit. The conversion factors for every supported unit are listed below.<\/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>Electric Charge \u2013 Calculation Example<\/h2><\/div>\r\n\r\n<\/p>\n<p><strong>Example:<\/strong> convert the default value of 1 coulomb (C) to millicoulombs (mC). One coulomb is 1 C, and one millicoulomb is 0.001 C.<\/p>\n<p>\\[Q_{\\mathrm{mC}}=1\\times\\frac{1}{0.001}=1000\\,\\mathrm{mC}\\]<\/p>\n<p><strong>Result:<\/strong> 1 C = 1,000 mC.<\/p>\n<p>\n\r\n<\/section>\n<h2>How to use the calculator<\/h2>\n<ol>\n<li>Enter a nonnegative number in <strong>Electric charge value<\/strong>.<\/li>\n<li>Choose its current unit in <strong>From unit<\/strong>.<\/li>\n<li>Choose the unit you want in <strong>To unit<\/strong>.<\/li>\n<li>Read the converted number and unit under <strong>Converted Electric Charge<\/strong>. To reverse the conversion, swap the two unit selections.<\/li>\n<\/ol>\n<p>For example, to express a battery capacity of 2.5 Ah as charge in coulombs, enter 2.5, select Ampere-hour (Ah) as the From unit, and select Coulomb (C) as the To unit. The result is 9,000 C. Selecting the same unit in both menus leaves the entered value unchanged, apart from any rounding in the displayed result.<\/p>\n<h2>What electric charge measures<\/h2>\n<p>Electric charge is a property of matter that determines how it responds to electric and magnetic fields. The coulomb (C) is the SI unit of charge. A charge of 1 C passes a point when a current of 1 ampere flows for 1 second, so \\(1\\,\\mathrm{C}=1\\,\\mathrm{A}\\cdot\\mathrm{s}\\). Charge and current are related but not interchangeable: current describes how quickly charge flows. If you need to change current units rather than charge units, use the <a href=\"https:\/\/wpcalc.com\/en\/converters\/electric-current\/\">Electric Current converter<\/a>.<\/p>\n<p>Millicoulombs, microcoulombs, and nanocoulombs express smaller quantities of the same charge. Their prefixes mean one thousandth, one millionth, and one billionth of a coulomb, respectively. Choosing a suitably sized unit makes a result easier to read: 0.005 C is 5 mC or 5,000 \u00b5C. The numeric value changes with the unit, but the physical amount of charge does not.<\/p>\n<p>An ampere-hour (Ah) is also a unit of charge, commonly used to state battery capacity. It is the charge corresponding to a current of 1 A sustained for 1 hour: \\(1\\,\\mathrm{Ah}=3{,}600\\,\\mathrm{C}\\). That equivalence converts charge, not battery energy. Energy also depends on voltage and operating conditions; an Ah rating alone does not tell you how many watt-hours a battery will deliver.<\/p>\n<h2>Supported units and conversion factors<\/h2>\n<p>Each factor below is the number of coulombs in one unit. Multiply a value by its factor to obtain coulombs; divide a value in coulombs by the target unit\u2019s factor to complete the conversion.<\/p>\n<table>\n<thead>\n<tr>\n<th>Unit<\/th>\n<th>Symbol<\/th>\n<th>Coulombs per unit<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Coulomb<\/td>\n<td>C<\/td>\n<td>1<\/td>\n<\/tr>\n<tr>\n<td>Millicoulomb<\/td>\n<td>mC<\/td>\n<td>0.001<\/td>\n<\/tr>\n<tr>\n<td>Microcoulomb<\/td>\n<td>\u00b5C<\/td>\n<td>0.000001<\/td>\n<\/tr>\n<tr>\n<td>Nanocoulomb<\/td>\n<td>nC<\/td>\n<td>0.000000001<\/td>\n<\/tr>\n<tr>\n<td>Ampere-hour<\/td>\n<td>Ah<\/td>\n<td>3,600<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>For a quick check, converting 1 \u00b5C to nC uses the factors 0.000001 and 0.000000001. Dividing the first by the second gives 1,000 nC. The same method works in either direction and for every pair of units in the menus.<\/p>\n<h2>Practical limits<\/h2>\n<p>The input accepts zero and positive values, but not negative values. Charge can be positive or negative in physics; this converter handles only the nonnegative magnitude you enter. It does not determine a charge\u2019s sign, the direction of current, or whether charge is stored, transferred, or distributed across an object.<\/p>\n<p>The displayed result is rounded to six decimal places. Very small results may therefore appear as zero even though the underlying conversion is not zero. If that happens, choose a smaller To unit\u2014such as nC instead of C\u2014or convert in the opposite direction to inspect the scale. The menu supports only C, mC, \u00b5C, nC, and Ah; units such as milliampere-hours and elementary charges are not available here.<\/p>\n<p>Converting charge does not describe how a circuit behaves. Resistance and <a href=\"https:\/\/wpcalc.com\/en\/converters\/conductance\/\">conductance<\/a>, for instance, are separate electrical quantities. Use the converted charge alongside the appropriate time, current, or circuit measurements when interpreting a practical result.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Convert electric charge between coulombs, millicoulombs, microcoulombs, nanocoulombs, and ampere-hours. Enter a value, then select the From unit and To unit.<\/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-55794","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\/55794","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=55794"}],"version-history":[{"count":2,"href":"https:\/\/wpcalc.com\/en\/wp-json\/wp\/v2\/posts\/55794\/revisions"}],"predecessor-version":[{"id":65262,"href":"https:\/\/wpcalc.com\/en\/wp-json\/wp\/v2\/posts\/55794\/revisions\/65262"}],"wp:attachment":[{"href":"https:\/\/wpcalc.com\/en\/wp-json\/wp\/v2\/media?parent=55794"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/wpcalc.com\/en\/wp-json\/wp\/v2\/categories?post=55794"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/wpcalc.com\/en\/wp-json\/wp\/v2\/tags?post=55794"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}