{"id":66649,"date":"2026-10-12T08:55:31","date_gmt":"2026-10-12T05:55:31","guid":{"rendered":"https:\/\/wpcalc.com\/en\/?p=66649"},"modified":"2026-10-12T08:55:31","modified_gmt":"2026-10-12T05:55:31","slug":"serum-osmolality-calculator","status":"publish","type":"post","link":"https:\/\/wpcalc.com\/en\/medical\/serum-osmolality-calculator\/","title":{"rendered":"Serum Osmolality 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\">Estimate Serum Osmolality from Sodium, Glucose and BUN<\/h2><\/div><div class=\"calcdash-favorite group\">\n  <button type=\"button\" class=\"favorite\" id=\"favorite\" data-favorite-id=\"66649\" data-favorite-title=\"Serum Osmolality\" data-favorite-url=\"https:\/\/wpcalc.com\/en\/medical\/serum-osmolality-calculator\/\" data-favorite-excerpt=\"Estimate serum osmolality from sodium, glucose, BUN and optional ethanol, and calculate the osmolar gap if a measured value is available. Enter your lab values in mg\/dL or mmol\/L to get an instant interpretation.\" aria-label=\"Add to Favorites\" data-favorite-icon=\"icon icon-flask\">\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\/medical\/serum-osmolality-calculator\/\" method=\"POST\" class=\"calculator\" id=\"calculator-66649\" data-post=\"66649\"><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\">Serum sodium<\/label><div class=\"term\">Na<\/div>  <div class=\"absolute bottom-0 left-16 top-8 w-2 h-0.5 bg-blue-500\"><\/div><input type=\"text\" name=\"serum_sodium\" id=\"field-1\" aria-describedby=\"calc-unit-1 calc-info-1\" data-number inputmode=\"decimal\" autocomplete=\"off\" spellcheck=\"false\" min=\"100\" max=\"180\" value=\"140\"\/><div class=\"unit\" id=\"calc-unit-1\">mEq\/L<\/div><small id=\"calc-info-1\">Same numeric value in mmol\/L<\/small><\/div><div class=\"field has-term\" id=\"input-2\"><label for=\"field-2\">Serum glucose<\/label><div class=\"term\">Glu<\/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=\"serum_glucose\" id=\"field-2\" aria-describedby=\"calc-info-2\" data-number inputmode=\"decimal\" autocomplete=\"off\" spellcheck=\"false\" min=\"1\" max=\"1500\" value=\"100\"\/><div class=\"grid grid-cols-1\"><select id=\"field-3\" name=\"unit\" aria-label=\"Unit\"><option value=\"mgdl\" selected>mg\/dL<\/option><option value=\"mmol\">mmol\/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-2\">From your blood test report<\/small><\/div><div class=\"field has-term\" id=\"input-3\"><label for=\"field-4\">Blood urea nitrogen<\/label><div class=\"term\">BUN<\/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=\"blood_urea_nitrogen\" id=\"field-4\" aria-describedby=\"calc-info-4\" data-number inputmode=\"decimal\" autocomplete=\"off\" spellcheck=\"false\" min=\"0.5\" max=\"250\" value=\"15\"\/><div class=\"grid grid-cols-1\"><select id=\"field-5\" name=\"unit\" aria-label=\"Unit\"><option value=\"mgdl\" selected>mg\/dL<\/option><option value=\"mmol\">mmol\/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-4\">BUN; enter urea if your report uses mmol\/L<\/small><\/div><div class=\"field has-term\" id=\"input-4\"><label for=\"field-6\">Ethanol (optional)<\/label><div class=\"term\">EtOH<\/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=\"ethanol_optional\" id=\"field-6\" aria-describedby=\"calc-info-6\" data-number inputmode=\"decimal\" autocomplete=\"off\" spellcheck=\"false\" min=\"0\" max=\"700\" value=\"0\"\/><div class=\"grid grid-cols-1\"><select id=\"field-7\" name=\"unit\" aria-label=\"Unit\"><option value=\"mgdl\" selected>mg\/dL<\/option><option value=\"mmol\">mmol\/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-6\">Leave at 0 if not measured or not applicable<\/small><\/div><div class=\"field has-term\" id=\"input-5\"><label for=\"field-8\">Measured osmolality (optional)<\/label><div class=\"term\">Osm<\/div>  <div class=\"absolute bottom-0 left-16 top-8 w-2 h-0.5 bg-blue-500\"><\/div><input type=\"text\" name=\"measured_osmolality_optional\" id=\"field-8\" aria-describedby=\"calc-unit-8 calc-info-8\" data-number inputmode=\"decimal\" autocomplete=\"off\" spellcheck=\"false\" min=\"200\" max=\"400\"\/><div class=\"unit\" id=\"calc-unit-8\">mOsm\/kg<\/div><small id=\"calc-info-8\">If entered, the osmolar gap is calculated<\/small><\/div><\/fieldset><div class=\"buttons\"><button type=\"submit\" data-text=\"Re-Calculate\" id=\"calculate-button\" data-post=\"66649\">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 Serum Osmolality Result<\/h3><div class=\"result-box\"><div class=\"field-result\" id=\"output-1\"><span class=\"field-title\"><span>Calculated serum osmolality<\/span><span class=\"result-term\">Osm<\/span><\/span><span class=\"field-value\" id=\"result-1\" data-unit=\"mOsm\/kg\"><\/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>Osmolar gap<\/span><span class=\"result-term\">OG<\/span><\/span><span class=\"field-value\" id=\"result-2\" data-unit=\"mOsm\/kg\"><\/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=\"66649\" 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>Serum Osmolality 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{Osm} = 2 \\times \\text{Na} + \\frac{\\text{Glucose}}{18} + \\frac{\\text{BUN}}{2.8} + \\frac{\\text{Ethanol}}{3.7} \\]\n<\/div>\r\n\t<\/figure>\r\n\t<\/p>\n<p><strong>Where:<\/strong><\/p>\n<ul>\n<li>\\(\\text{Osm}\\) \u2014 calculated serum osmolality (mOsm\/kg)<\/li>\n<li>\\(\\text{Na}\\) \u2014 serum sodium (mEq\/L, identical numerically to mmol\/L)<\/li>\n<li>\\(\\text{Glucose}\\) \u2014 serum glucose in mg\/dL<\/li>\n<li>\\(\\text{BUN}\\) \u2014 blood urea nitrogen in mg\/dL<\/li>\n<li>\\(\\text{Ethanol}\\) \u2014 serum ethanol in mg\/dL (optional term; omit if not measured)<\/li>\n<\/ul>\n<p>This is a bedside estimate of the concentration of osmotically active particles in blood plasma. Each solute in mg\/dL is divided by its molecular weight factor to convert it into mmol\/L, while sodium is doubled because it is paired with an equal number of anions.<\/p>\n<p>If a measured osmolality is available, the <strong>osmolar gap<\/strong> is:<\/p>\n<p>\\[ \\text{Osmolar gap} = \\text{Osm}_{\\text{measured}} - \\text{Osm}_{\\text{calculated}} \\]<br \/>\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>Serum Osmolality \u2013 Calculation Example<\/h2><\/div>\r\n\r\n<\/p>\n<p><strong>Example:<\/strong> a patient with a serum sodium of 140 mEq\/L, glucose of 100 mg\/dL, BUN of 15 mg\/dL and no measurable ethanol.<\/p>\n<p>\\[ \\text{Osm} = 2 \\times 140 + \\frac{100}{18} + \\frac{15}{2.8} \\]<\/p>\n<p>\\[ \\text{Osm} = 280 + 5.6 + 5.4 = 290.9 \\text{ mOsm\/kg} \\]<\/p>\n<p><strong>Result:<\/strong> the calculated serum osmolality is approximately 291 mOsm\/kg, which falls within the normal reference range of 275\u2013295 mOsm\/kg. If the laboratory had also reported a measured osmolality of, say, 295 mOsm\/kg, the osmolar gap would be \\( 295 - 290.9 = 4.1 \\) mOsm\/kg \u2014 also normal.<\/p>\n<p>\n\r\n<\/section>\n<h2>How to Use the Calculator<\/h2>\n<ol>\n<li>Enter your <strong>Serum sodium<\/strong> in mEq\/L (the same number applies if your report uses mmol\/L).<\/li>\n<li>Enter your <strong>Serum glucose<\/strong> and choose the unit \u2014 <strong>mg\/dL<\/strong> or <strong>mmol\/L<\/strong> \u2014 using the unit selector next to the field.<\/li>\n<li>Enter your <strong>Blood urea nitrogen (BUN)<\/strong> and select its unit. If your report lists urea in mmol\/L, enter that value and choose mmol\/L; the calculator converts it for you.<\/li>\n<li>If an ethanol level was measured, enter it in the <strong>Ethanol (optional)<\/strong> field with the correct unit; otherwise leave it at 0.<\/li>\n<li>If the laboratory measured osmolality directly, type it into <strong>Measured osmolality (optional)<\/strong> to calculate the osmolar gap. Leave this field empty if you only have the calculated value.<\/li>\n<li>Read the <strong>Calculated serum osmolality<\/strong>, the <strong>Osmolar gap<\/strong> (if a measured value was entered) and the interpretation text below them.<\/li>\n<\/ol>\n<h2>What Is Serum Osmolality?<\/h2>\n<p>Serum osmolality describes the total concentration of dissolved, osmotically active particles in the blood \u2014 primarily sodium and its accompanying anions, along with glucose and urea. It is expressed in milliosmoles per kilogram of water (mOsm\/kg). Osmolality drives the movement of water between body compartments, so it is central to evaluating fluid balance disturbances.<\/p>\n<p>Although osmolality can be measured directly by an osmometer, many clinical situations rely on a calculated estimate from routine chemistry values. The normal range is roughly 275\u2013295 mOsm\/kg. A value below 275 suggests hypo-osmolality, most often caused by hyponatremia; a value above 295 indicates hyperosmolality, commonly due to hyperglycemia, dehydration or kidney failure with elevated urea. Marked elevations above 320 mOsm\/kg are medically urgent.<\/p>\n<p>The <strong>osmolar gap<\/strong> compares the measured osmolality with the calculated estimate. A gap within about \u221210 to +10 mOsm\/kg is considered normal. A significantly elevated gap means there are osmotically active substances in the blood that the formula does not account for \u2014 classic causes include toxic alcohol poisoning (methanol, ethylene glycol), acetone in diabetic ketoacidosis, mannitol therapy and radiocontrast agents. A large negative gap is unusual and often signals a laboratory error worth repeating.<\/p>\n<h2>Assumptions, Limitations and Practical Tips<\/h2>\n<ul>\n<li><strong>The result is an estimate, not a measurement.<\/strong> Calculated osmolality typically runs about 5\u201310 mOsm\/kg below a directly measured value, because the formula ignores minor solutes such as potassium, calcium and proteins.<\/li>\n<li><strong>Include ethanol when it is present.<\/strong> In intoxicated patients, omitting the ethanol term can falsely elevate the osmolar gap and mimic toxic alcohol ingestion. If you also suspect methanol or ethylene glycol, the remaining gap after accounting for ethanol is the clinically relevant signal.<\/li>\n<li><strong>Unit conversion matters.<\/strong> Glucose 1 mmol\/L \u2248 18 mg\/dL, urea 1 mmol\/L \u2248 2.8 mg\/dL BUN, and ethanol 1 mmol\/L \u2248 4.6 mg\/dL. Double-check which unit your lab report uses before entering values.<\/li>\n<li><strong>An isolated calculated value has limits.<\/strong> Interpretation should always happen alongside the clinical picture, other labs and, where available, a measured osmolality. This tool is for information only and is not a medical diagnosis.<\/li>\n<\/ul>\n<p>Related tools that often complement this one: in severe hyperglycemia the sodium itself is diluted, so pair this calculator with the <a href=\"https:\/\/wpcalc.com\/en\/medical\/hyperglycemia-sodium-correction\/\">Corrected Sodium calculator<\/a>; when treating hypernatremia, the <a href=\"https:\/\/wpcalc.com\/en\/medical\/free-water-deficit\/\">Free Water Deficit calculator<\/a> helps plan replacement; and because elevated BUN raises osmolality, the <a href=\"https:\/\/wpcalc.com\/en\/medical\/egfr-calculator-ckd-epi-2021\/\">eGFR calculator<\/a> is useful for assessing the underlying kidney function.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Estimate serum osmolality from sodium, glucose, BUN and optional ethanol, and calculate the osmolar gap if a measured value is available. Enter your lab values in mg\/dL or mmol\/L to get an instant interpretation.<\/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":[8],"tags":[50],"class_list":["post-66649","post","type-post","status-publish","format-standard","hentry","category-medical","tag-diagnostics"],"acf":[],"_links":{"self":[{"href":"https:\/\/wpcalc.com\/en\/wp-json\/wp\/v2\/posts\/66649","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=66649"}],"version-history":[{"count":1,"href":"https:\/\/wpcalc.com\/en\/wp-json\/wp\/v2\/posts\/66649\/revisions"}],"predecessor-version":[{"id":66650,"href":"https:\/\/wpcalc.com\/en\/wp-json\/wp\/v2\/posts\/66649\/revisions\/66650"}],"wp:attachment":[{"href":"https:\/\/wpcalc.com\/en\/wp-json\/wp\/v2\/media?parent=66649"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/wpcalc.com\/en\/wp-json\/wp\/v2\/categories?post=66649"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/wpcalc.com\/en\/wp-json\/wp\/v2\/tags?post=66649"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}