{"id":66782,"date":"2026-10-13T09:00:58","date_gmt":"2026-10-13T06:00:58","guid":{"rendered":"https:\/\/wpcalc.com\/en\/?p=66782"},"modified":"2026-10-13T09:00:58","modified_gmt":"2026-10-13T06:00:58","slug":"bilirubin-units-converter","status":"publish","type":"post","link":"https:\/\/wpcalc.com\/en\/converters\/bilirubin-units-converter\/","title":{"rendered":"Bilirubin Units 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 Your Bilirubin Result Between mg\/dL and \u00b5mol\/L<\/h2><\/div><div class=\"calcdash-favorite group\">\n  <button type=\"button\" class=\"favorite\" id=\"favorite\" data-favorite-id=\"66782\" data-favorite-title=\"Bilirubin Units\" data-favorite-url=\"https:\/\/wpcalc.com\/en\/converters\/bilirubin-units-converter\/\" data-favorite-excerpt=\"Convert a serum bilirubin result between mg\/dL and \u00b5mol\/L instantly, and see how your value compares with typical adult reference ranges for total and direct bilirubin.\" aria-label=\"Add to Favorites\" data-favorite-icon=\"icon icon-chemistry\">\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\/bilirubin-units-converter\/\" method=\"POST\" class=\"calculator\" id=\"calculator-66782\" data-post=\"66782\"><fieldset class=\"fieldset-input is-2\"><legend class=\"sr-only\">Input Fields<\/legend><div class=\"field has-term\" id=\"input-1\"><label for=\"field-1\">Bilirubin concentration<\/label><div class=\"term\">Bili<\/div>  <div class=\"absolute bottom-0 left-16 top-8 w-2 h-0.5 bg-blue-500\"><\/div><div class=\"field-group\"><input type=\"text\" name=\"bilirubin_concentration\" id=\"field-1\" aria-describedby=\"calc-info-1\" data-number inputmode=\"decimal\" autocomplete=\"off\" spellcheck=\"false\" placeholder=\"e.g. 0.8\" min=\"0.01\" max=\"40\" value=\"0.8\"\/><div class=\"grid grid-cols-1\"><select id=\"field-2\" name=\"unit\" aria-label=\"Unit\"><option value=\"mgdl\" selected>mg\/dL<\/option><option value=\"umoll\">\u00b5mol\/L<\/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><small id=\"calc-info-1\">Enter your serum bilirubin value from the lab report<\/small><\/div><div class=\"field\" id=\"input-2\"><label for=\"field-3\">Context<\/label><div class=\"grid grid-cols-1\"><select id=\"field-3\" name=\"context\"><option value=\"total\" selected>Total bilirubin<\/option><option value=\"direct\">Direct (conjugated) bilirubin<\/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=\"66782\">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 Bilirubin Conversion<\/h3><div class=\"result-box\"><div class=\"field-result\" id=\"output-1\"><span class=\"field-title\"><span>Bilirubin in mg\/dL<\/span><span class=\"result-term\">mg\/dL<\/span><\/span><span class=\"field-value\" id=\"result-1\" data-unit=\"mg\/dL\"><\/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 class=\"field-result\" id=\"output-2\"><span class=\"field-title\"><span>Bilirubin in \u00b5mol\/L<\/span><span class=\"result-term\">\u00b5mol\/L<\/span><\/span><span class=\"field-value\" id=\"result-2\" data-unit=\"\u00b5mol\/L\"><\/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 class=\"field-result is-column\" id=\"output-3\"><span class=\"field-title\"><span>What this means<\/span><\/span><span class=\"field-value\" id=\"result-3\"><\/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=\"66782\" 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>Bilirubin Units 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\\[ \\text{bilirubin (\u00b5mol\/L)} = \\text{bilirubin (mg\/dL)} \\times 17.1 \\]\n\\[ \\text{bilirubin (mg\/dL)} = \\text{bilirubin (\u00b5mol\/L)} \\div 17.1 \\]\n<\/div>\r\n\t<\/figure>\r\n\t<\/p>\n<p><strong>Where:<\/strong><\/p>\n<ul>\n<li>mg\/dL \u2014 milligrams per deciliter, the unit used in the United States<\/li>\n<li>\u00b5mol\/L \u2014 micromoles per liter, the unit used in most of Europe and elsewhere<\/li>\n<li>17.1 \u2014 the conversion factor, derived from the molecular weight of bilirubin (584.66 g\/mol)<\/li>\n<\/ul>\n<p>The factor 17.1 comes from unit chemistry: 1 mg\/dL equals 0.01 g per liter, and dividing by the molar mass gives 0.01 \/ 584.66 \u00d7 10\u2076 \u2248 17.1 \u00b5mol\/L. The same factor works in both directions, so one multiplication or division converts any bilirubin value between the two unit systems.<\/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>Bilirubin Units \u2013 Calculation Example<\/h2><\/div>\r\n\r\n<\/p>\n<p><strong>Example:<\/strong> a lab report from a European hospital shows a total serum bilirubin of 14 \u00b5mol\/L, but your doctor's chart uses mg\/dL. You enter <strong>14<\/strong> as the concentration, select <strong>\u00b5mol\/L<\/strong> as the unit and <strong>Total bilirubin<\/strong> as the context.<\/p>\n<p>\\[ 14 \\div 17.1 = 0.82 \\text{ mg\/dL} \\]<\/p>\n<p><strong>Result:<\/strong> 14 \u00b5mol\/L \u2248 0.82 mg\/dL \u2014 within the typical adult reference range for total bilirubin (about 0.2\u20131.2 mg\/dL, or 3.4\u201320.5 \u00b5mol\/L).<\/p>\n<p>\n\r\n<\/section>\n<h2>How to Use the Bilirubin Units Converter<\/h2>\n<ol>\n<li>Enter your bilirubin value from the lab report in the <strong>Bilirubin concentration<\/strong> field (e.g. 0.8).<\/li>\n<li>Choose the unit printed on your report \u2014 <strong>mg\/dL<\/strong> or <strong>\u00b5mol\/L<\/strong> \u2014 in the <strong>Unit<\/strong> dropdown next to the value.<\/li>\n<li>Select the <strong>Context<\/strong>: either <strong>Total bilirubin<\/strong> or <strong>Direct (conjugated) bilirubin<\/strong>. This does not change the conversion; it only decides which reference range is used for the interpretation.<\/li>\n<li>Read the results: the converter shows your value in both <strong>mg\/dL<\/strong> and <strong>\u00b5mol\/L<\/strong>, plus a short interpretation of what the value means.<\/li>\n<\/ol>\n<h2>What Is Bilirubin and Why Two Units Exist<\/h2>\n<p>Bilirubin is a yellow compound produced when the body breaks down old red blood cells. The spleen releases bilirubin into the blood, the liver converts it into a water-soluble (conjugated, or \"direct\") form, and it is then excreted in bile. Because this process touches the blood, the liver and the bile ducts, bilirubin is one of the most informative markers on a standard liver panel: elevated levels cause jaundice (yellowing of the skin and eyes) and point to where the problem may lie.<\/p>\n<p>Lab reports express bilirubin in one of two unit systems. The United States uses mass-based units, milligrams per deciliter (mg\/dL), while most other countries use molar units, micromoles per liter (\u00b5mol\/L). Both describe exactly the same concentration \u2014 they just scale it differently. A total bilirubin of 1.0 mg\/dL is the same as 17.1 \u00b5mol\/L. This is why the same result can look \"high\" on one report and \"normal\" on another if you read the units carelessly.<\/p>\n<p>The calculator also gives a rough interpretation. Typical adult ranges are about 0.2\u20131.2 mg\/dL (3.4\u201320.5 \u00b5mol\/L) for total bilirubin and 0.0\u20130.3 mg\/dL (0\u20135.1 \u00b5mol\/L) for direct bilirubin. Mildly elevated total bilirubin is very common and often harmless \u2014 Gilbert syndrome, a genetic variant affecting roughly 3\u20138% of people, routinely pushes total bilirubin slightly above the range without any liver damage. Values above roughly 3 mg\/dL (about 51 \u00b5mol\/L) usually deserve medical workup, and very high values suggest significant liver or biliary disease.<\/p>\n<p>Keep in mind that the ratio between direct and total bilirubin matters as much as the absolute number. A predominantly direct (conjugated) elevation suggests a liver or bile-duct problem, while a mainly indirect elevation points to increased red blood cell breakdown (hemolysis) or Gilbert syndrome. Your clinician reads the two values together with other liver enzymes.<\/p>\n<h2>Assumptions, Limitations and Practical Tips<\/h2>\n<ul>\n<li><strong>One factor fits all fractions.<\/strong> Total, direct and indirect bilirubin all use the same conversion factor of 17.1 because the factor depends only on the molecular weight of bilirubin, not on which fraction is measured.<\/li>\n<li><strong>Reference ranges vary.<\/strong> Each laboratory sets its own range, and values differ with age. In newborns, bilirubin normally rises in the first days of life and is assessed with age-specific nomograms, not adult ranges \u2014 this tool does not evaluate newborn jaundice.<\/li>\n<li><strong>Interpretation is not diagnosis.<\/strong> The \"What this means\" text is a general guide. Bilirubin must be interpreted by a clinician alongside other tests such as ALT, AST, ALP and albumin, and in the context of medications, fasting and symptoms.<\/li>\n<li><strong>Check the unit before comparing.<\/strong> The most common mistake is comparing a \u00b5mol\/L value against an mg\/dL range (or vice versa), which makes a normal result look seventeen times too high. Always confirm the unit printed on the report.<\/li>\n<li><strong>Rounding.<\/strong> The calculator displays mg\/dL to two decimals and \u00b5mol\/L rounded to the nearest whole number, matching how most lab reports present these values.<\/li>\n<\/ul>\n<p>If you work with other lab values reported in mixed units, you may also find our <a href=\"https:\/\/wpcalc.com\/en\/converters\/cholesterol-units-converter-mg-dl-to-mmol-l\/\">cholesterol units converter<\/a>, the <a href=\"https:\/\/wpcalc.com\/en\/converters\/hba1c-converter\/\">HbA1c converter<\/a>, the <a href=\"https:\/\/wpcalc.com\/en\/converters\/vitamin-d-units-converter\/\">vitamin D units converter<\/a> and the <a href=\"https:\/\/wpcalc.com\/en\/converters\/testosterone-units-converter\/\">testosterone units converter<\/a> useful for the same reason \u2014 translating between mass-based and molar reporting units.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Convert a serum bilirubin result between mg\/dL and \u00b5mol\/L instantly, and see how your value compares with typical adult reference ranges for total and direct bilirubin.<\/p>\n","protected":false},"author":3168,"featured_media":0,"comment_status":"open","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[3],"tags":[17],"class_list":["post-66782","post","type-post","status-publish","format-standard","hentry","category-converters","tag-chemistry-units"],"acf":[],"_links":{"self":[{"href":"https:\/\/wpcalc.com\/en\/wp-json\/wp\/v2\/posts\/66782","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\/3168"}],"replies":[{"embeddable":true,"href":"https:\/\/wpcalc.com\/en\/wp-json\/wp\/v2\/comments?post=66782"}],"version-history":[{"count":1,"href":"https:\/\/wpcalc.com\/en\/wp-json\/wp\/v2\/posts\/66782\/revisions"}],"predecessor-version":[{"id":66783,"href":"https:\/\/wpcalc.com\/en\/wp-json\/wp\/v2\/posts\/66782\/revisions\/66783"}],"wp:attachment":[{"href":"https:\/\/wpcalc.com\/en\/wp-json\/wp\/v2\/media?parent=66782"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/wpcalc.com\/en\/wp-json\/wp\/v2\/categories?post=66782"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/wpcalc.com\/en\/wp-json\/wp\/v2\/tags?post=66782"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}