{"id":55884,"date":"2015-10-24T16:04:39","date_gmt":"2015-10-24T14:04:39","guid":{"rendered":"http:\/\/wpcalc.com\/?p=55884"},"modified":"2026-09-28T09:24:07","modified_gmt":"2026-09-28T06:24:07","slug":"kelvin","status":"publish","type":"post","link":"https:\/\/wpcalc.com\/en\/converters\/kelvin\/","title":{"rendered":"Kelvin to Celsius, Fahrenheit &#038; More 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\">Kelvin Temperature Conversion Tool<\/h2><\/div><div class=\"calcdash-favorite group\">\n  <button type=\"button\" class=\"favorite\" id=\"favorite\" data-favorite-id=\"55884\" data-favorite-title=\"Kelvin to Celsius, Fahrenheit &amp; More\" data-favorite-url=\"https:\/\/wpcalc.com\/en\/converters\/kelvin\/\" data-favorite-excerpt=\"Enter a temperature in kelvin to convert it to Celsius, Fahrenheit, Rankine, Newton, Delisle, R\u00e9aumur, and R\u00f8mer.\" 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\/kelvin\/\" method=\"POST\" class=\"calculator\" id=\"calculator-55884\" data-post=\"55884\"><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\">Temperature in Kelvin<\/label><div class=\"term\">K<\/div>  <div class=\"absolute bottom-0 left-16 top-8 w-2 h-0.5 bg-blue-500\"><\/div><input type=\"text\" name=\"temperature_in_kelvin\" id=\"field-1\" aria-describedby=\"calc-unit-1 calc-info-1\" data-number inputmode=\"decimal\" autocomplete=\"off\" spellcheck=\"false\" min=\"0\" value=\"300\"\/><div class=\"unit\" id=\"calc-unit-1\">K<\/div><small id=\"calc-info-1\">Enter the temperature in kelvin<\/small><\/div><\/fieldset><div class=\"buttons\"><button type=\"submit\" data-text=\"Re-Calculate\" id=\"calculate-button\" data-post=\"55884\">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>Celsius<\/span><\/span><span class=\"field-value\" id=\"result-1\" data-unit=\"\u00b0C\"><\/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>Fahrenheit<\/span><\/span><span class=\"field-value\" id=\"result-2\" data-unit=\"\u00b0F\"><\/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-3\"><span class=\"field-title\"><span>Rankine<\/span><\/span><span class=\"field-value\" id=\"result-3\" data-unit=\"\u00b0R\"><\/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-4\"><span class=\"field-title\"><span>Newton<\/span><\/span><span class=\"field-value\" id=\"result-4\" data-unit=\"\u00b0N\"><\/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-5\"><span class=\"field-title\"><span>Delisle<\/span><\/span><span class=\"field-value\" id=\"result-5\" data-unit=\"\u00b0De\"><\/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-6\"><span class=\"field-title\"><span>Reaumur<\/span><\/span><span class=\"field-value\" id=\"result-6\" data-unit=\"\u00b0Re\"><\/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-7\"><span class=\"field-title\"><span>R\u00f8mer<\/span><\/span><span class=\"field-value\" id=\"result-7\" data-unit=\"\u00b0R\u00f8\"><\/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=\"55884\" 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>Kelvin Temperature Conversion 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\\[\n\\begin{aligned}\nC &amp;= K-273.15 \\\\\nF &amp;= \\frac{9}{5}C+32 \\\\\nRa &amp;= \\frac{9}{5}K \\\\\nN &amp;= \\frac{33}{100}C \\\\\nDe &amp;= \\frac{3}{2}(100-C) \\\\\nRe &amp;= \\frac{4}{5}C \\\\\nR\\o &amp;= \\frac{21}{40}C+7.5\n\\end{aligned}\n\\]\n<\/div>\r\n\t<\/figure>\r\n\t<\/p>\n<p><strong>Where:<\/strong><\/p>\n<ul>\n<li>\\(K\\) \u2014 temperature in kelvin (K).<\/li>\n<li>\\(C\\) \u2014 temperature in degrees Celsius (\u00b0C).<\/li>\n<li>\\(F\\) \u2014 temperature in degrees Fahrenheit (\u00b0F).<\/li>\n<li>\\(Ra\\) \u2014 temperature in degrees Rankine (\u00b0R).<\/li>\n<li>\\(N\\), \\(De\\), \\(Re\\), and \\(R\\o\\) \u2014 temperatures in degrees Newton, Delisle, R\u00e9aumur, and R\u00f8mer, respectively.<\/li>\n<\/ul>\n<p>First subtract 273.15 to find the Celsius temperature. The remaining formulas convert that value to other scales, except Rankine, which is calculated directly from kelvin. The calculator uses decimal approximations for the Newton and R\u00f8mer conversions, so its last displayed digits may differ slightly from calculations using the fractions above.<\/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>Kelvin Temperature Conversion \u2013 Calculation Example<\/h2><\/div>\r\n\r\n<\/p>\n<p><strong>Example:<\/strong> Convert the calculator\u2019s default temperature of 300 K to every available scale.<\/p>\n<p>Start with Celsius, then use it for the conversions that depend on it:<\/p>\n<p>\\[C=300-273.15=26.85\\,^{\\circ}\\mathrm{C}\\]<\/p>\n<p>\\[\\begin{aligned}F&amp;=\\frac{9}{5}(26.85)+32=80.33\\,^{\\circ}\\mathrm{F}\\\\Ra&amp;=\\frac{9}{5}(300)=540\\,^{\\circ}\\mathrm{R}\\\\N&amp;=\\frac{33}{100}(26.85)=8.8605\\,^{\\circ}\\mathrm{N}\\\\De&amp;=\\frac{3}{2}(100-26.85)=109.725\\,^{\\circ}\\mathrm{De}\\\\Re&amp;=\\frac{4}{5}(26.85)=21.48\\,^{\\circ}\\mathrm{Re}\\\\R\\o&amp;=\\frac{21}{40}(26.85)+7.5=21.59625\\,^{\\circ}\\mathrm{R\\o}\\end{aligned}\\]<\/p>\n<p><strong>Result:<\/strong> 300 K is 26.85 \u00b0C, 80.33 \u00b0F, 540 \u00b0R, approximately 8.86 \u00b0N, 109.725 \u00b0De, 21.48 \u00b0Re, and approximately 21.60 \u00b0R\u00f8. Displayed results may be rounded.<\/p>\n<p>\n\r\n<\/section>\n<h2>How to use the calculator<\/h2>\n<ol>\n<li>Enter your value in the <strong>Temperature in Kelvin<\/strong> field. For example, enter 300 for 300 K; do not add the unit to the number.<\/li>\n<li>Read the converted values under <strong>Celsius<\/strong>, <strong>Fahrenheit<\/strong>, <strong>Rankine<\/strong>, <strong>Newton<\/strong>, <strong>Delisle<\/strong>, <strong>Reaumur<\/strong>, and <strong>R\u00f8mer<\/strong>.<\/li>\n<li>Check the unit beside each result. If you need a different starting scale, use the <a href=\"https:\/\/wpcalc.com\/en\/converters\/celsius\/\">Celsius converter<\/a> or <a href=\"https:\/\/wpcalc.com\/en\/converters\/fahrenheit\/\">Fahrenheit converter<\/a> instead.<\/li>\n<\/ol>\n<h2>What a kelvin conversion tells you<\/h2>\n<p>Kelvin is the SI base unit of thermodynamic temperature. Its zero point is absolute zero, the lower limit of thermodynamic temperature. A temperature in kelvin is written with K, not \u00b0K. Celsius has the same-sized degree as kelvin but a different zero point: 273.15 K equals 0 \u00b0C. This makes the subtraction of 273.15 the essential first step in most conversions on this page.<\/p>\n<p>Fahrenheit is commonly used for everyday temperatures in the United States, while Celsius is common in weather reports and many practical settings elsewhere. Rankine, like kelvin, starts at absolute zero, but one Rankine degree is the size of one Fahrenheit degree. That is why a kelvin value is multiplied by 1.8 to obtain Rankine, without an added offset. If your starting value is already in Rankine, use the <a href=\"https:\/\/wpcalc.com\/en\/converters\/rankine\/\">Rankine converter<\/a>.<\/p>\n<p>Newton, Delisle, R\u00e9aumur, and R\u00f8mer are historical temperature scales. Their numbers cannot be interpreted as Celsius or Fahrenheit values: each scale sets its own reference points and degree size. Delisle also runs in the opposite direction from Celsius over the usual reference range\u2014a higher Celsius temperature produces a lower Delisle reading. The calculator gives equivalent temperatures, not changes in temperature.<\/p>\n<h2>Reference points and practical limits<\/h2>\n<p>Two useful checks are 273.15 K = 0 \u00b0C = 32 \u00b0F and 373.15 K = 100 \u00b0C = 212 \u00b0F. The latter is the boiling point of pure water at standard atmospheric pressure; water\u2019s actual boiling temperature changes with pressure. At 0 K, the Celsius and Fahrenheit equivalents are \u2212273.15 \u00b0C and \u2212459.67 \u00b0F.<\/p>\n<p>Enter an absolute temperature, not a temperature difference. For example, a rise of 10 K is also a rise of 10 Celsius degrees; subtracting 273.15 from that <em>difference<\/em> would be incorrect. Kelvin temperatures cannot be below 0 K, and the calculator\u2019s input has a minimum of zero. Fractional kelvin values are valid when your measurement calls for them.<\/p>\n<p>Converted values may be rounded for display, so avoid treating extra digits as measurement precision. The Newton and R\u00f8mer calculations in the tool use approximate decimal divisors rather than the exact fractions shown in the formula. For ordinary inputs the difference is very small, but when comparing results at high precision, calculate with the exact fractions and round only at the end. If you have a temperature on the historical Delisle scale to convert back, use the <a href=\"https:\/\/wpcalc.com\/en\/converters\/delisle\/\">Delisle converter<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Enter a temperature in kelvin to convert it to Celsius, Fahrenheit, Rankine, Newton, Delisle, R\u00e9aumur, and R\u00f8mer.<\/p>\n","protected":false},"author":70,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[3],"tags":[17],"class_list":["post-55884","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\/55884","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=55884"}],"version-history":[{"count":2,"href":"https:\/\/wpcalc.com\/en\/wp-json\/wp\/v2\/posts\/55884\/revisions"}],"predecessor-version":[{"id":65280,"href":"https:\/\/wpcalc.com\/en\/wp-json\/wp\/v2\/posts\/55884\/revisions\/65280"}],"wp:attachment":[{"href":"https:\/\/wpcalc.com\/en\/wp-json\/wp\/v2\/media?parent=55884"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/wpcalc.com\/en\/wp-json\/wp\/v2\/categories?post=55884"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/wpcalc.com\/en\/wp-json\/wp\/v2\/tags?post=55884"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}