{"id":66935,"date":"2026-10-13T10:32:41","date_gmt":"2026-10-13T07:32:41","guid":{"rendered":"https:\/\/wpcalc.com\/en\/?p=66935"},"modified":"2026-10-13T10:32:41","modified_gmt":"2026-10-13T07:32:41","slug":"speed-of-sound-in-air-calculator","status":"publish","type":"post","link":"https:\/\/wpcalc.com\/en\/physics\/speed-of-sound-in-air-calculator\/","title":{"rendered":"Speed of Sound in Air 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\">How Fast Does Sound Travel at Your Temperature?<\/h2><\/div><div class=\"calcdash-favorite group\">\n  <button type=\"button\" class=\"favorite\" id=\"favorite\" data-favorite-id=\"66935\" data-favorite-title=\"Speed of Sound in Air\" data-favorite-url=\"https:\/\/wpcalc.com\/en\/physics\/speed-of-sound-in-air-calculator\/\" data-favorite-excerpt=\"Enter air temperature, humidity and atmospheric pressure to instantly find how fast sound travels in air. Results are given in m\/s, km\/h, ft\/s, mph and knots, with the humidity effect and reference values.\" aria-label=\"Add to Favorites\" data-favorite-icon=\"icon icon-spectrum\">\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\/physics\/speed-of-sound-in-air-calculator\/\" method=\"POST\" class=\"calculator\" id=\"calculator-66935\" data-post=\"66935\"><fieldset class=\"fieldset-input is-1\"><legend class=\"sr-only\">Input Fields<\/legend><div class=\"field has-term\" id=\"input-1\"><label for=\"field-1\">Air temperature (T)<\/label><div class=\"term\">T<\/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=\"number\" name=\"air_temperature_t\" id=\"field-1\" aria-describedby=\"calc-info-1\" placeholder=\"e.g. 20\" min=\"-100\" max=\"1000\" step=\"any\" value=\"20\"\/><div class=\"grid grid-cols-1\"><select id=\"field-2\" name=\"unit\" aria-label=\"Unit\"><option value=\"c\" selected>\u00b0C<\/option><option value=\"f\">\u00b0F<\/option><option value=\"k\">K<\/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\">Speed of sound grows with temperature. Common reference: 20 \u00b0C (68 \u00b0F).<\/small><\/div><div class=\"field has-term\" id=\"input-2\"><label for=\"field-3\">Relative humidity (RH)<\/label><div class=\"term\">RH<\/div>  <div class=\"absolute bottom-0 left-16 top-8 w-2 h-0.5 bg-blue-500\"><\/div><input type=\"text\" name=\"relative_humidity_rh\" id=\"field-3\" aria-describedby=\"calc-unit-3 calc-info-3\" data-number inputmode=\"decimal\" autocomplete=\"off\" spellcheck=\"false\" placeholder=\"e.g. 50 (leave blank for dry air)\" min=\"0\" max=\"100\" value=\"50\"\/><div class=\"unit\" id=\"calc-unit-3\">%<\/div><small id=\"calc-info-3\">Optional. Humid air is slightly lighter, so sound travels a little faster. Leave blank for dry air.<\/small><\/div><div class=\"field has-term\" id=\"input-3\"><label for=\"field-4\">Atmospheric pressure (p)<\/label><div class=\"term\">p<\/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=\"atmospheric_pressure_p\" id=\"field-4\" aria-describedby=\"calc-info-4\" data-number inputmode=\"decimal\" autocomplete=\"off\" spellcheck=\"false\" placeholder=\"e.g. 1013.25\" min=\"0\" value=\"1013.25\"\/><div class=\"grid grid-cols-1\"><select id=\"field-5\" name=\"unit\" aria-label=\"Unit\"><option value=\"hpa\" selected>hPa<\/option><option value=\"kpa\">kPa<\/option><option value=\"inhg\">inHg<\/option><option value=\"mmhg\">mmHg<\/option><option value=\"atm\">atm<\/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\">Barometric pressure, used to evaluate the humidity correction. Standard sea-level pressure is 1013.25 hPa (29.92 inHg).<\/small><\/div><\/fieldset><div class=\"buttons\"><button type=\"submit\" data-text=\"Re-Calculate\" id=\"calculate-button\" data-post=\"66935\">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> Speed of Sound Results<\/h3><div class=\"result-box\"><div class=\"field-result is-column\" id=\"output-1\"><span class=\"field-title\"><span>Estimated speed of sound (c)<\/span><span class=\"result-term\">c<\/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 is-column\" id=\"output-2\"><span class=\"field-title\"><span>Details \u2014 dry air, humidity effect and reference values<\/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><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=\"66935\" 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>Speed of Sound in Air 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\\[ c = \\sqrt{\\dfrac{\\gamma R T}{M}} \\]\n<\/div>\r\n\t<\/figure>\r\n\t<\/p>\n<p><strong>Where:<\/strong><\/p>\n<ul>\n<li>\\(c\\) \u2014 speed of sound in air (m\/s)<\/li>\n<li>\\(\\gamma = 1.4\\) \u2014 ratio of specific heats for air (a diatomic gas)<\/li>\n<li>\\(R = 8.31446\\ \\text{J\/(mol\u00b7K)}\\) \u2014 universal gas constant<\/li>\n<li>\\(T\\) \u2014 absolute temperature of the air (K)<\/li>\n<li>\\(M\\) \u2014 molar mass of the air (kg\/mol): 0.0289644 for dry air, lower for humid air<\/li>\n<\/ul>\n<p>For humid air, the molar mass is obtained from the dry-air and water-vapour partial pressures: \\( M = \\dfrac{p_d M_{dry} + p_v M_{vap}}{p} \\), where the water-vapour partial pressure \\(p_v\\) follows the Magnus saturation-vapour-pressure formula. This is the ideal-gas expression for the adiabatic speed of sound \u2014 the key point being that sound speed depends on temperature and gas composition, not on air pressure itself.<\/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>Speed of Sound in Air \u2013 Calculation Example<\/h2><\/div>\r\n\r\n<\/p>\n<p><strong>Example:<\/strong> air at 20 \u00b0C, 50 % relative humidity and standard pressure of 1013.25 hPa (the calculator's default values).<\/p>\n<p>\\[ T = 20 + 273.15 = 293.15\\ \\text{K} \\]<\/p>\n<p>\\[ p_v = 0.50 \\times 6.112\\, e^{\\frac{17.62 \\times 20}{243.12 + 20}} \\approx 11.66\\ \\text{hPa} \\]<\/p>\n<p>\\[ M = \\frac{1001.59 \\times 0.0289644 + 11.66 \\times 0.0180153}{1013.25} \\approx 0.028840\\ \\text{kg\/mol} \\]<\/p>\n<p>\\[ c = \\sqrt{\\frac{1.4 \\times 8.31446 \\times 293.15}{0.028840}} \\approx 343.97\\ \\text{m\/s} \\]<\/p>\n<p><strong>Result:<\/strong> the speed of sound is about <strong>343.97 m\/s<\/strong> (1238.3 km\/h, 1128.6 ft\/s, 769.4 mph, 668.6 kn). Dry air at the same temperature gives 343.24 m\/s, so humidity adds about 0.73 m\/s.<\/p>\n<p>\n\r\n<\/section>\n<h2>How to use the calculator<\/h2>\n<ol>\n<li>Enter the <strong>Air temperature (T)<\/strong> and choose its <strong>Unit<\/strong> \u2014 \u00b0C, \u00b0F or K. The value is converted internally to kelvin.<\/li>\n<li>Optionally enter the <strong>Relative humidity (RH)<\/strong> as a percentage between 0 and 100. Leave the field blank if you want dry air.<\/li>\n<li>Enter the <strong>Atmospheric pressure (p)<\/strong> and select its <strong>Unit<\/strong> (hPa, kPa, inHg, mmHg or atm). Standard sea-level pressure, 1013.25 hPa, is pre-filled.<\/li>\n<li>Read the <strong>Estimated speed of sound (c)<\/strong> in metres per second, along with conversions to km\/h, ft\/s, mph and knots.<\/li>\n<li>Check the <strong>Details<\/strong> block for the absolute temperature, the dry-air speed, the humidity effect, the vapour pressure and the molar mass used in the calculation.<\/li>\n<\/ol>\n<h2>What is the speed of sound in air?<\/h2>\n<p>Sound is a pressure wave that travels through air by compressing and expanding it. Because these compressions happen so quickly, no significant heat escapes, and the wave propagates adiabatically \u2014 which is why the ratio of specific heats \\(\\gamma\\) appears in the formula. In dry air at 0 \u00b0C the speed of sound is 331.3 m\/s; at a comfortable room temperature of 20 \u00b0C it rises to about 343 m\/s, roughly 1235 km\/h.<\/p>\n<p>Temperature is by far the dominant factor. Hotter air means faster-moving molecules, which pass pressure disturbances along more quickly: the speed scales with the square root of the absolute temperature, so it rises by roughly 0.6 m\/s per degree Celsius near room temperature. A handy approximation for dry air is \\( c \\approx 331.3 + 0.606\\,T(\u00b0C) \\) m\/s.<\/p>\n<p>Humidity has a smaller but measurable effect, and it works in a direction many people find counter-intuitive: humid air is <em>less<\/em> dense, because water-vapour molecules (18.02 g\/mol) are lighter than the nitrogen and oxygen they displace (28.96 g\/mol average). Lighter molecules move faster at the same temperature, so sound travels slightly faster in moist air \u2014 typically 0.5 to 1 m\/s faster at room temperature and moderate humidity. Atmospheric pressure itself has almost no influence: at a fixed temperature, denser air also has proportionally higher pressure, and the two effects cancel, leaving pressure to matter only through the small humidity correction.<\/p>\n<p>The speed of sound matters in many practical situations: estimating the distance to a lightning strike (count the seconds until thunder and multiply by ~343 m\/s), room and concert-hall acoustics, echo and sonar timing, and defining Mach numbers in aerodynamics. It also underpins the <a href=\"https:\/\/wpcalc.com\/en\/physics\/doppler-effect-calculator\/\">Doppler effect<\/a>, since the pitch shift of a passing siren depends on how the source speed compares with the sound speed.<\/p>\n<h2>Reference values<\/h2>\n<table>\n<thead>\n<tr>\n<th>Air temperature<\/th>\n<th>Speed of sound (dry air)<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u221240 \u00b0C<\/td>\n<td>306.0 m\/s<\/td>\n<\/tr>\n<tr>\n<td>0 \u00b0C<\/td>\n<td>331.3 m\/s<\/td>\n<\/tr>\n<tr>\n<td>10 \u00b0C<\/td>\n<td>337.4 m\/s<\/td>\n<\/tr>\n<tr>\n<td>20 \u00b0C<\/td>\n<td>343.2 m\/s<\/td>\n<\/tr>\n<tr>\n<td>40 \u00b0C<\/td>\n<td>354.7 m\/s<\/td>\n<\/tr>\n<tr>\n<td>60 \u00b0C<\/td>\n<td>365.9 m\/s<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>Assumptions and limitations<\/h2>\n<ul>\n<li>The calculation treats air as an ideal gas with a constant \\(\\gamma = 1.4\\), which is accurate to within a fraction of a percent for everyday temperatures (roughly \u221250 \u00b0C to +60 \u00b0C). At very high or very low temperatures the result becomes an approximation.<\/li>\n<li>The result applies to <strong>still air<\/strong>. Wind does not change how fast sound moves <em>relative to the air<\/em>, but it changes the speed relative to the ground \u2014 a tailwind carries sound further, a headwind shortens its reach.<\/li>\n<li>High-frequency sound (ultrasound) and very loud shocks (blast waves, sonic booms) travel faster than the small-amplitude value computed here, because they are not perfectly linear adiabatic waves.<\/li>\n<li>Humidity is handled with the Magnus formula (CIPM-81\/89 approach), which is very accurate between about \u221245 \u00b0C and +60 \u00b0C; outside this range the vapour-pressure estimate, and hence the humidity correction, degrades.<\/li>\n<li>Variations in CO\u2082 concentration or altitude-related composition changes shift the molar mass slightly; for ordinary air the effect is well below 1 m\/s.<\/li>\n<\/ul>\n<h2>Practical tips<\/h2>\n<p>For most quick estimates, temperature alone is enough \u2014 you can leave the humidity field blank and ignore pressure, since their combined effect rarely exceeds 1 m\/s. If you are timing echoes or measuring distances with sound (for example, timing a clap reflected off a wall), divide the round trip by two before comparing with the speed. To convert a distance into a sound travel time, or to work with waves in general, the <a href=\"https:\/\/wpcalc.com\/en\/physics\/wave-speed-calculator-wavelength-frequency\/\">Wave Speed<\/a> and <a href=\"https:\/\/wpcalc.com\/en\/physics\/average-speed-calculator\/\">Average Speed<\/a> calculators can help with the follow-up calculations.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Enter air temperature, humidity and atmospheric pressure to instantly find how fast sound travels in air. Results are given in m\/s, km\/h, ft\/s, mph and knots, with the humidity effect and reference values.<\/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":[62],"tags":[87],"class_list":["post-66935","post","type-post","status-publish","format-standard","hentry","category-physics","tag-waves-optics"],"acf":[],"_links":{"self":[{"href":"https:\/\/wpcalc.com\/en\/wp-json\/wp\/v2\/posts\/66935","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=66935"}],"version-history":[{"count":1,"href":"https:\/\/wpcalc.com\/en\/wp-json\/wp\/v2\/posts\/66935\/revisions"}],"predecessor-version":[{"id":66936,"href":"https:\/\/wpcalc.com\/en\/wp-json\/wp\/v2\/posts\/66935\/revisions\/66936"}],"wp:attachment":[{"href":"https:\/\/wpcalc.com\/en\/wp-json\/wp\/v2\/media?parent=66935"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/wpcalc.com\/en\/wp-json\/wp\/v2\/categories?post=66935"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/wpcalc.com\/en\/wp-json\/wp\/v2\/tags?post=66935"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}