{"id":66875,"date":"2026-10-13T10:02:28","date_gmt":"2026-10-13T07:02:28","guid":{"rendered":"https:\/\/wpcalc.com\/en\/?p=66875"},"modified":"2026-10-13T10:02:28","modified_gmt":"2026-10-13T07:02:28","slug":"michaelis-menten-calculator","status":"publish","type":"post","link":"https:\/\/wpcalc.com\/en\/chemistry\/michaelis-menten-calculator\/","title":{"rendered":"Michaelis\u2013Menten Calculator"},"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\">Reaction Velocity from Substrate Concentration<\/h2><\/div><div class=\"calcdash-favorite group\">\n  <button type=\"button\" class=\"favorite\" id=\"favorite\" data-favorite-id=\"66875\" data-favorite-title=\"Michaelis\u2013Menten\" data-favorite-url=\"https:\/\/wpcalc.com\/en\/chemistry\/michaelis-menten-calculator\/\" data-favorite-excerpt=\"Calculate the initial reaction velocity of an enzyme-catalyzed reaction using the Michaelis\u2013Menten equation. Enter substrate concentration, Km, and Vmax to get v0 and the fraction of Vmax.\" aria-label=\"Add to Favorites\" data-favorite-icon=\"icon icon-biology\">\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\/chemistry\/michaelis-menten-calculator\/\" method=\"POST\" class=\"calculator\" id=\"calculator-66875\" data-post=\"66875\"><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\">Substrate Concentration [S]<\/label><div class=\"term\">[S]<\/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=\"substrate_concentration_s\" id=\"field-1\" aria-describedby=\"calc-info-1\" data-number inputmode=\"decimal\" autocomplete=\"off\" spellcheck=\"false\" placeholder=\"e.g. 2\" min=\"0\" value=\"2\"\/><div class=\"grid grid-cols-1\"><select id=\"field-2\" name=\"unit\" aria-label=\"Unit\"><option value=\"nM\">nM<\/option><option value=\"uM\">\u00b5M<\/option><option value=\"mM\" selected>mM<\/option><option value=\"M\">M<\/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\">Concentration of the substrate at the start of the reaction.<\/small><\/div><div class=\"field has-term\" id=\"input-2\"><label for=\"field-3\">Michaelis Constant (Km)<\/label><div class=\"term\">Km<\/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=\"michaelis_constant_km\" id=\"field-3\" aria-describedby=\"calc-info-3\" data-number inputmode=\"decimal\" autocomplete=\"off\" spellcheck=\"false\" placeholder=\"e.g. 1\" min=\"0\" value=\"1\"\/><div class=\"grid grid-cols-1\"><select id=\"field-4\" name=\"unit\" aria-label=\"Unit\"><option value=\"nM\">nM<\/option><option value=\"uM\">\u00b5M<\/option><option value=\"mM\" selected>mM<\/option><option value=\"M\">M<\/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-3\">Substrate concentration at which the velocity is half of Vmax.<\/small><\/div><div class=\"field has-term\" id=\"input-3\"><label for=\"field-5\">Maximum Velocity (Vmax)<\/label><div class=\"term\">Vmax<\/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=\"maximum_velocity_vmax\" id=\"field-5\" aria-describedby=\"calc-info-5\" data-number inputmode=\"decimal\" autocomplete=\"off\" spellcheck=\"false\" placeholder=\"e.g. 100\" min=\"0\" value=\"100\"\/><div class=\"grid grid-cols-1\"><select id=\"field-6\" name=\"unit\" aria-label=\"Unit\"><option value=\"umol_min\" selected>\u00b5mol\/min<\/option><option value=\"nmol_min\">nmol\/min<\/option><option value=\"mmol_min\">mmol\/min<\/option><option value=\"mol_s\">mol\/s<\/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-5\">Velocity reached when the enzyme is fully saturated with substrate.<\/small><\/div><\/fieldset><div class=\"buttons\"><button type=\"submit\" data-text=\"Re-Calculate\" id=\"calculate-button\" data-post=\"66875\">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> Michaelis\u2013Menten Results<\/h3><div class=\"result-box\"><div class=\"field-result\" id=\"output-1\"><span class=\"field-title\"><span>Initial Reaction Velocity (v\u2080)<\/span><span class=\"result-term\">v\u2080<\/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 class=\"field-result\" id=\"output-2\"><span class=\"field-title\"><span>Fraction of Vmax<\/span><span class=\"result-term\">v\u2080\/Vmax<\/span><\/span><span class=\"field-value\" id=\"result-2\"><\/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>Calculation Details<\/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 class=\"field-result is-column\" id=\"output-4\"><span class=\"field-title\"><span>About the Michaelis\u2013Menten Equation<\/span><\/span><span class=\"field-value\" id=\"result-4\"><\/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=\"66875\" 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>Michaelis\u2013Menten 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\\[ v_0 = \\frac{V_{max} \\cdot [S]}{K_m + [S]} \\]\n<\/div>\r\n\t<\/figure>\r\n\t<\/p>\n<p><strong>Where:<\/strong><\/p>\n<ul>\n<li>\\(v_0\\) \u2014 initial reaction velocity (same units as \\(V_{max}\\), e.g. \u00b5mol\/min)<\/li>\n<li>\\(V_{max}\\) \u2014 maximum velocity reached when all enzyme active sites are saturated with substrate<\/li>\n<li>\\([S]\\) \u2014 substrate concentration<\/li>\n<li>\\(K_m\\) \u2014 Michaelis constant, the substrate concentration at which \\(v_0 = V_{max}\/2\\)<\/li>\n<\/ul>\n<p>The equation describes how the rate of an enzyme-catalyzed reaction increases with substrate concentration, rising steeply at low \\([S]\\) and approaching \\(V_{max}\\) asymptotically as the enzyme becomes saturated.<\/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>Michaelis\u2013Menten \u2013 Calculation Example<\/h2><\/div>\r\n\r\n<\/p>\n<p><strong>Example:<\/strong> an enzyme has a Michaelis constant of 1 mM and a maximum velocity of 100 \u00b5mol\/min. What is the initial velocity when the substrate concentration is 2 mM?<\/p>\n<p>\\[ v_0 = \\frac{V_{max} \\cdot [S]}{K_m + [S]} = \\frac{100 \\ \\mu\\text{mol\/min} \\times 2 \\ \\text{mM}}{1 \\ \\text{mM} + 2 \\ \\text{mM}} \\]<\/p>\n<p>\\[ v_0 = \\frac{200}{3} \\approx 66.6667 \\ \\mu\\text{mol\/min} \\]<\/p>\n<p><strong>Result:<\/strong> the initial reaction velocity is approximately 66.67 \u00b5mol\/min, which is 2\/3 (66.67%) of Vmax.<\/p>\n<p>\n\r\n<\/section>\n<h2>How to Use the Michaelis\u2013Menten Calculator<\/h2>\n<ol>\n<li>Enter the <strong>Substrate Concentration [S]<\/strong> and select its unit (nM, \u00b5M, mM, or M).<\/li>\n<li>Enter the <strong>Michaelis Constant (Km)<\/strong> with its unit \u2014 it must be expressed in concentration units, ideally the same as [S].<\/li>\n<li>Enter the <strong>Maximum Velocity (Vmax)<\/strong> and choose the velocity unit (\u00b5mol\/min, nmol\/min, mmol\/min, or mol\/s).<\/li>\n<li>Read the <strong>Initial Reaction Velocity (v\u2080)<\/strong>, shown in the same unit you picked for Vmax, together with the <strong>Fraction of Vmax<\/strong>, a full substitution trail, and a saturation table.<\/li>\n<\/ol>\n<h2>What Is the Michaelis\u2013Menten Equation?<\/h2>\n<p>The Michaelis\u2013Menten model, published by Leonor Michaelis and Maud Menten in 1913, is the cornerstone of enzyme kinetics. It relates the initial rate of a single-substrate enzyme reaction to the concentration of that substrate. At low substrate concentrations, most active sites are empty, so adding more substrate strongly increases the rate. As \\([S]\\) grows, more and more active sites become occupied, and the rate flattens out toward \\(V_{max}\\), the velocity at which every enzyme molecule is working at full capacity.<\/p>\n<p>The two parameters each carry distinct information. \\(V_{max} = k_{cat} \\cdot [E]_{total}\\) reflects both how fast each enzyme molecule can turn over substrate and how much enzyme is present. \\(K_m\\) is purely a property of the enzyme\u2013substrate pair (independent of enzyme concentration) and corresponds to the substrate concentration that gives half-maximal velocity. A <em>low<\/em> \\(K_m\\) means the enzyme reaches substantial rates at low substrate levels \u2014 high apparent affinity \u2014 while a <em>high<\/em> \\(K_m\\) signals weak affinity.<\/p>\n<p>Interpreting the result is straightforward once you compare \\([S]\\) with \\(K_m\\). When \\([S] = K_m\\), the reaction runs at exactly 50% of \\(V_{max}\\). When \\([S] \\gg K_m\\) (roughly 10-fold or more), the enzyme is nearly saturated and the rate approaches \\(V_{max}\\), becoming effectively zero-order in substrate. When \\([S] \\ll K_m\\), the rate is approximately proportional to \\([S]\\) (first-order behavior): \\(v_0 \\approx (V_{max}\/K_m)[S]\\), and the ratio \\(V_{max}\/K_m\\) serves as a convenient measure of catalytic efficiency.<\/p>\n<p>Note that saturation is approached gradually: even at \\([S] = 10\\,K_m\\), the velocity is only about 91% of \\(V_{max}\\). The calculator's saturation table makes this behavior visible by showing the velocity at 0.25, 0.5, 1, 2, 5, and 10 times \\(K_m\\).<\/p>\n<h2>Assumptions, Limitations, and Practical Tips<\/h2>\n<ul>\n<li><strong>Initial velocity only:<\/strong> the equation applies at the very start of the reaction, when product has barely accumulated, \\([S]\\) is essentially unchanged, and the reverse reaction is negligible.<\/li>\n<li><strong>Steady state:<\/strong> the enzyme\u2013substrate complex reaches a steady (or rapid pre-equilibrium) state shortly after mixing, the condition under which the Briggs\u2013Haldane derivation is valid.<\/li>\n<li><strong>Single substrate, simple mechanism:<\/strong> allosteric enzymes, multi-substrate reactions, substrate inhibition, and cooperative binding (sigmoid kinetics) are not described by this equation.<\/li>\n<li><strong>Enzyme is limiting:<\/strong> \\([S]\\) must be much larger than the total enzyme concentration so that free substrate approximates total substrate.<\/li>\n<li><strong>Unit consistency:<\/strong> \\(K_m\\) and \\([S]\\) must be in the same kind of units (the calculator converts them automatically), and \\(v_0\\) comes out in whatever unit you chose for \\(V_{max}\\).<\/li>\n<li><strong>Fixed conditions:<\/strong> \\(K_m\\) and \\(V_{max}\\) depend on pH, temperature, and inhibitors, so use values measured under the same conditions as your experiment. If pH matters for your enzyme, our <a href=\"https:\/\/wpcalc.com\/en\/chemistry\/henderson-hasselbalch-calculator\/\">Henderson\u2013Hasselbalch calculator<\/a> can help you check the buffer conditions.<\/li>\n<\/ul>\n<p>Experimentally, \\(K_m\\) and \\(V_{max}\\) are usually obtained by measuring initial rates at several substrate concentrations and fitting a linear transform (Lineweaver\u2013Burk, Hanes\u2013Woolf) or, better, by nonlinear regression directly on the Michaelis\u2013Menten curve. Once fitted, those constants let you predict the rate at any substrate level \u2014 exactly what this calculator does. For reactions that follow simple first-order or pseudo-first-order kinetics instead of saturating enzyme kinetics, the <a href=\"https:\/\/wpcalc.com\/en\/chemistry\/reaction-half-life-calculator\/\">reaction half-life calculator<\/a> may be a better fit, and the <a href=\"https:\/\/wpcalc.com\/en\/chemistry\/partition-coefficient-calculator\/\">partition coefficient calculator<\/a> covers how substrates distribute between phases.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Calculate the initial reaction velocity of an enzyme-catalyzed reaction using the Michaelis\u2013Menten equation. Enter substrate concentration, Km, and Vmax to get v0 and the fraction of Vmax.<\/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":[54],"tags":[60],"class_list":["post-66875","post","type-post","status-publish","format-standard","hentry","category-chemistry","tag-biochemistry"],"acf":[],"_links":{"self":[{"href":"https:\/\/wpcalc.com\/en\/wp-json\/wp\/v2\/posts\/66875","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=66875"}],"version-history":[{"count":1,"href":"https:\/\/wpcalc.com\/en\/wp-json\/wp\/v2\/posts\/66875\/revisions"}],"predecessor-version":[{"id":66876,"href":"https:\/\/wpcalc.com\/en\/wp-json\/wp\/v2\/posts\/66875\/revisions\/66876"}],"wp:attachment":[{"href":"https:\/\/wpcalc.com\/en\/wp-json\/wp\/v2\/media?parent=66875"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/wpcalc.com\/en\/wp-json\/wp\/v2\/categories?post=66875"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/wpcalc.com\/en\/wp-json\/wp\/v2\/tags?post=66875"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}