{"id":65819,"date":"2026-10-14T11:50:47","date_gmt":"2026-10-14T06:20:47","guid":{"rendered":"https:\/\/www.quickonlinetips.com\/archives\/?page_id=65819"},"modified":"2026-10-15T10:49:17","modified_gmt":"2026-10-15T05:19:17","slug":"temperature-converter","status":"publish","type":"page","link":"https:\/\/www.quickonlinetips.com\/archives\/tools\/temperature-converter\/","title":{"rendered":"Temperature Converter: Celsius, Fahrenheit and Kelvin"},"content":{"rendered":"<p>Convert <strong>Celsius to Fahrenheit<\/strong>, Fahrenheit to Celsius and Kelvin in one box. 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var(--qt-line);border-radius:8px;background:repeating-conic-gradient(#E2E8F0 0 25%,#fff 0 50%) 0 0\/16px 16px} .qt-tool .qt-lb{display:inline-flex;width:44px;height:44px;border-radius:50%;align-items:center;justify-content:center;font-weight:700;font-size:17px;background:#fff;color:#1A202C;border:2px solid var(--qt-accent);margin:3px} .qt-tool .qt-lb.qt-bonus{background:#E53E3E;color:#fff;border-color:#E53E3E} .qt-tool .qt-8{width:230px;height:230px;border-radius:50%;margin:16px auto;background:radial-gradient(circle at 35% 30%,#666,#000 62%);display:flex;align-items:center;justify-content:center;cursor:pointer;box-shadow:0 10px 24px rgba(0,0,0,.35)} .qt-tool .qt-8 span{width:116px;height:116px;border-radius:50%;background:radial-gradient(circle,#2747a8,#0b1a4a);color:#fff;display:flex;align-items:center;justify-content:center;text-align:center;font-size:13px;font-weight:700;padding:16px;box-sizing:border-box;line-height:1.25;transition:opacity .3s} .qt-tool .qt-shake{animation:qt-shake .7s} @keyframes qt-shake{0%,100%{transform:translate(0)}20%{transform:translate(-12px,4px) rotate(-6deg)}40%{transform:translate(10px,-6px) rotate(5deg)}60%{transform:translate(-8px,6px) rotate(-4deg)}80%{transform:translate(6px,-3px) rotate(3deg)}} .qt-tool .qt-grid>.qt-field{display:flex;flex-direction:column;justify-content:flex-end} .qt-tool .qt-field input[type=range]{height:46px;padding:0 10px} .qt-tool .qt-field input[type=color]{height:46px} .qt-tool .qt-drop .qt-sub{font-weight:400;font-size:14px;margin:4px 0 0} .qt-tool .qt-board{display:grid;gap:5px;margin:14px auto 0;max-width:100%;user-select:none;-webkit-user-select:none;touch-action:manipulation} .qt-tool .qt-cell{display:flex;align-items:center;justify-content:center;background:#fff;border:1px solid #AEC3DB;border-radius:6px;font-weight:700;cursor:pointer;aspect-ratio:1;font-size:clamp(14px,4vw,26px);color:#1A202C;padding:0;min-width:0;font-family:inherit;line-height:1} .qt-tool .qt-cell:disabled{cursor:default} .qt-tool .qt-win{background:#C6F6D5;border-color:#38A169} .qt-tool .qt-sel{background:#BEE3F8;border-color:#3182CE} .qt-tool .qt-bad{background:#FED7D7;border-color:#E53E3E} .qt-tool select{-webkit-appearance:none;-moz-appearance:none;appearance:none;padding-right:40px;cursor:pointer;border:2px solid #90B4DA;font-weight:600;background-color:#fff;background-image:url(\"data:image\/svg+xml,%3Csvg xmlns='http:\/\/www.w3.org\/2000\/svg' viewBox='0 0 14 9'%3E%3Cpath d='M1.5 1.5l5.5 5.5 5.5-5.5' fill='none' stroke='%232B6CB0' stroke-width='2.4' stroke-linecap='round' stroke-linejoin='round'\/%3E%3C\/svg%3E\");background-repeat:no-repeat;background-position:right 14px center;background-size:14px 9px} .qt-tool select:hover{border-color:var(--qt-accent);background-color:#F4F8FD} .qt-tool select::-ms-expand{display:none} .qt-next{margin:0 0 1.75em} .qt-next .qt-next-h{font-size:14px;font-weight:700;letter-spacing:.05em;text-transform:uppercase;color:#4A5568;margin:0 0 8px} .qt-next-g{display:grid;grid-template-columns:repeat(3,1fr);gap:8px} .qt-next-g a{display:flex;align-items:center;min-height:46px;padding:9px 12px;border:1px solid #AEC3DB;border-radius:8px;background:#F4F8FD;color:#215387;font-weight:600;font-size:15px;line-height:1.3;text-decoration:none} .qt-next-g a:hover,.qt-next-g a:focus{background:#E3EEFF;border-color:#2B6CB0;text-decoration:none} @media (max-width:600px){.qt-next-g{grid-template-columns:repeat(2,1fr)}}<\/style>\n<div class=\"qt-tool\" id=\"qt-tp\">\n<div class=\"qt-grid\">\n<div class=\"qt-field\"><label for=\"qt-tp-c\">Celsius (\u00b0C)<\/label><input type=\"number\" step=\"any\" id=\"qt-tp-c\" value=\"25\"><\/div>\n<div class=\"qt-field\"><label for=\"qt-tp-f\">Fahrenheit (\u00b0F)<\/label><input type=\"number\" step=\"any\" id=\"qt-tp-f\"><\/div>\n<div class=\"qt-field\"><label for=\"qt-tp-k\">Kelvin (K)<\/label><input type=\"number\" step=\"any\" id=\"qt-tp-k\"><\/div>\n<\/div>\n<div class=\"qt-result qt-roman\" id=\"qt-tp-res\" aria-live=\"polite\" style=\"min-height:0;font-size:26px\"><\/div>\n<div class=\"qt-explain\" id=\"qt-tp-how\"><\/div>\n<div class=\"qt-presets\"><button type=\"button\" class=\"qt-btn qt-btn-ghost qt-btn-sm\" data-qt-c=\"-40\">\u221240 \u00b0C<\/button><button type=\"button\" class=\"qt-btn qt-btn-ghost qt-btn-sm\" data-qt-c=\"0\">Freezing 0 \u00b0C<\/button><button type=\"button\" class=\"qt-btn qt-btn-ghost qt-btn-sm\" data-qt-c=\"20\">Room 20 \u00b0C<\/button><button type=\"button\" class=\"qt-btn qt-btn-ghost qt-btn-sm\" data-qt-c=\"37\">Body 37 \u00b0C<\/button><button type=\"button\" class=\"qt-btn qt-btn-ghost qt-btn-sm\" data-qt-c=\"100\">Boiling 100 \u00b0C<\/button><button type=\"button\" class=\"qt-btn qt-btn-ghost qt-btn-sm\" data-qt-c=\"180\">Oven 180 \u00b0C<\/button><\/div>\n<div class=\"qt-status\" id=\"qt-tp-status\" aria-live=\"polite\"><\/div>\n<p class=\"qt-note\">Everything runs in your browser. Nothing you enter is sent to or stored on our server.<\/p>\n<\/div>\n<p><script>(function () { function qtReady(fn) { if (document.readyState === 'loading') { document.addEventListener('DOMContentLoaded', fn); } else { fn(); } } function qtCopy(text, statusEl, okMsg) { function done(ok) { if (statusEl) { statusEl.textContent = ok ? (okMsg || 'Copied to clipboard.') : 'Press Ctrl+C (or Cmd+C) to copy.'; } } function fallback() { var ta = document.createElement('textarea'); ta.value = text; ta.setAttribute('readonly', ''); ta.style.position = 'fixed'; ta.style.top = '-1000px'; document.body.appendChild(ta); ta.select(); var ok = false; try { ok = document.execCommand('copy'); } catch (e) { ok = false; } document.body.removeChild(ta); done(ok); } if (navigator.clipboard) { if (window.isSecureContext) { navigator.clipboard.writeText(text).then(function () { done(true); }, fallback); return; } } fallback(); } function qtRand32() { var c = window.crypto || window.msCrypto; if (c) { if (c.getRandomValues) { var a = new Uint32Array(1); c.getRandomValues(a); return a[0]; } } return Math.floor(Math.random() * 4294967296); } function qtRandInt(range) { if (range === 4294967296) { return qtRand32(); } var limit = Math.floor(4294967296 \/ range) * range; var x = qtRand32(); while (x >= limit) { x = qtRand32(); } return x % range; } qtReady(function () { var c = document.getElementById('qt-tp-c'); if (!c) { return; } var f = document.getElementById('qt-tp-f'), k = document.getElementById('qt-tp-k'), res = document.getElementById('qt-tp-res'), how = document.getElementById('qt-tp-how'); function r(x) { return Math.round(x * 100) \/ 100; } function show(C, src) { if (!isFinite(C)) { res.textContent = ''; how.textContent = ''; return; } var F = C * 9 \/ 5 + 32, K = C + 273.15; if (src !== 'c') { c.value = r(C); } if (src !== 'f') { f.value = r(F); } if (src !== 'k') { k.value = r(K); } res.textContent = r(C) + ' \u00b0C = ' + r(F) + ' \u00b0F = ' + r(K) + ' K'; how.textContent = src === 'f' ? '(' + r(F) + ' \u2212 32) \u00d7 5\/9 = ' + r(C) + ' \u00b0C' : r(C) + ' \u00d7 9\/5 + 32 = ' + r(F) + ' \u00b0F'; document.getElementById('qt-tp-status').textContent = -273.15 > C ? 'That is below absolute zero (\u2212273.15 \u00b0C), which is physically impossible.' : ''; } c.addEventListener('input', function () { show(parseFloat(c.value), 'c'); }); f.addEventListener('input', function () { show((parseFloat(f.value) - 32) * 5 \/ 9, 'f'); }); k.addEventListener('input', function () { show(parseFloat(k.value) - 273.15, 'k'); }); Array.prototype.forEach.call(document.querySelectorAll('[data-qt-c]'), function (b) { b.addEventListener('click', function () { show(parseFloat(b.getAttribute('data-qt-c')), ''); }); }); show(25, ''); }); })();<\/script><\/p>\n<div class=\"qt-next\">\n<p class=\"qt-next-h\">Try another free tool<\/p>\n<div class=\"qt-next-g\"><a href=\"https:\/\/www.quickonlinetips.com\/archives\/tools\/binary-translator\/\">Binary Translator<\/a><a href=\"https:\/\/www.quickonlinetips.com\/archives\/tools\/morse-code-translator\/\">Morse Code Translator<\/a><a href=\"https:\/\/www.quickonlinetips.com\/archives\/tools\/roman-numeral-converter\/\">Roman Numeral Converter<\/a><a href=\"https:\/\/www.quickonlinetips.com\/archives\/tools\/length-converter\/\">Length Converter<\/a><a href=\"https:\/\/www.quickonlinetips.com\/archives\/tools\/weight-converter\/\">Weight Converter<\/a><a href=\"https:\/\/www.quickonlinetips.com\/archives\/tools\/number-to-words\/\">Number to Words<\/a><\/div>\n<\/div>\n<p><strong>Quick answer:<\/strong> To convert Celsius to Fahrenheit, multiply by 9\/5 (1.8) and add 32. So 25 \u00b0C \u00d7 1.8 + 32 = 77 \u00b0F. To go from Fahrenheit to Celsius, subtract 32 and multiply by 5\/9: 77 \u00b0F \u2212 32 = 45, \u00d7 5\/9 = 25 \u00b0C.<\/p>\n<h2>Celsius to Fahrenheit formulas<\/h2>\n<ul>\n<li><strong>\u00b0C to \u00b0F:<\/strong> \u00b0F = \u00b0C \u00d7 9\/5 + 32<\/li>\n<li><strong>\u00b0F to \u00b0C:<\/strong> \u00b0C = (\u00b0F \u2212 32) \u00d7 5\/9<\/li>\n<li><strong>\u00b0C to K:<\/strong> K = \u00b0C + 273.15<\/li>\n<li><strong>Quick mental estimate:<\/strong> double the Celsius and add 30. 20 \u00b0C gives about 70 \u00b0F (exact: 68 \u00b0F). It is close for everyday weather.<\/li>\n<\/ul>\n<h2>Celsius to Fahrenheit chart<\/h2>\n<table class=\"qt-ref\">\n<thead>\n<tr>\n<th>\u00b0C<\/th>\n<th>\u00b0F<\/th>\n<th>What it feels like<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u221240<\/td>\n<td>\u221240<\/td>\n<td>The point where both scales are equal<\/td>\n<\/tr>\n<tr>\n<td>\u221218<\/td>\n<td>0<\/td>\n<td>Freezer<\/td>\n<\/tr>\n<tr>\n<td>0<\/td>\n<td>32<\/td>\n<td>Water freezes<\/td>\n<\/tr>\n<tr>\n<td>10<\/td>\n<td>50<\/td>\n<td>Cool day<\/td>\n<\/tr>\n<tr>\n<td>20<\/td>\n<td>68<\/td>\n<td>Room temperature<\/td>\n<\/tr>\n<tr>\n<td>30<\/td>\n<td>86<\/td>\n<td>Hot day<\/td>\n<\/tr>\n<tr>\n<td>37<\/td>\n<td>98.6<\/td>\n<td>Normal body temperature<\/td>\n<\/tr>\n<tr>\n<td>40<\/td>\n<td>104<\/td>\n<td>Heatwave; high fever<\/td>\n<\/tr>\n<tr>\n<td>100<\/td>\n<td>212<\/td>\n<td>Water boils at sea level<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>Oven temperatures<\/h2>\n<table class=\"qt-ref\">\n<thead>\n<tr>\n<th>\u00b0C<\/th>\n<th>\u00b0F<\/th>\n<th>Gas mark<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>150<\/td>\n<td>300<\/td>\n<td>2<\/td>\n<\/tr>\n<tr>\n<td>160<\/td>\n<td>325<\/td>\n<td>3<\/td>\n<\/tr>\n<tr>\n<td>180<\/td>\n<td>350<\/td>\n<td>4<\/td>\n<\/tr>\n<tr>\n<td>190<\/td>\n<td>375<\/td>\n<td>5<\/td>\n<\/tr>\n<tr>\n<td>200<\/td>\n<td>400<\/td>\n<td>6<\/td>\n<\/tr>\n<tr>\n<td>220<\/td>\n<td>425<\/td>\n<td>7<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Recipes round oven temperatures, so 180 \u00b0C and 350 \u00b0F are treated as the same setting even though 350 \u00b0F is exactly 176.7 \u00b0C. For fan ovens, many recipes suggest about 20 \u00b0C lower.<\/p>\n<h2>Who uses which scale?<\/h2>\n<p>The United States and a few other places use Fahrenheit for weather and cooking. Almost everywhere else, including India, the UK and Europe, uses Celsius. Scientists use Kelvin, which starts at absolute zero, the coldest possible temperature (0 K = \u2212273.15 \u00b0C).<\/p>\n<p>Converting other units? Try the <a href=\"https:\/\/www.quickonlinetips.com\/archives\/tools\/length-converter\/\">length converter<\/a> or the <a href=\"https:\/\/www.quickonlinetips.com\/archives\/tools\/weight-converter\/\">weight converter<\/a>.<\/p>\n<h2>FAQ<\/h2>\n<h3>Is 37 \u00b0C a fever?<\/h3>\n<p>No, 37 \u00b0C (98.6 \u00b0F) is the average normal body temperature. A fever usually starts around 38 \u00b0C (100.4 \u00b0F).<\/p>\n<h3>What is 0 \u00b0F in Celsius?<\/h3>\n<p>About \u221217.8 \u00b0C.<\/p>\n<h2>More free tools<\/h2>\n<div class=\"qt-cards\"><a class=\"qt-card\" href=\"https:\/\/www.quickonlinetips.com\/archives\/tools\/binary-translator\/\"><strong>Binary Translator<\/strong><span>Convert text to binary code and binary back to text.<\/span><\/a><a class=\"qt-card\" href=\"https:\/\/www.quickonlinetips.com\/archives\/tools\/morse-code-translator\/\"><strong>Morse Code Translator<\/strong><span>Turn text into Morse code and back, with sound.<\/span><\/a><a class=\"qt-card\" href=\"https:\/\/www.quickonlinetips.com\/archives\/tools\/roman-numeral-converter\/\"><strong>Roman Numeral Converter<\/strong><span>Turn numbers, years and dates into Roman numerals.<\/span><\/a><a class=\"qt-card\" href=\"https:\/\/www.quickonlinetips.com\/archives\/tools\/length-converter\/\"><strong>Length Converter<\/strong><span>cm, inches, feet, metres, miles and more.<\/span><\/a><a class=\"qt-card\" href=\"https:\/\/www.quickonlinetips.com\/archives\/tools\/weight-converter\/\"><strong>Weight Converter<\/strong><span>kg to lbs, grams, ounces and stones.<\/span><\/a><a class=\"qt-card\" href=\"https:\/\/www.quickonlinetips.com\/archives\/tools\/number-to-words\/\"><strong>Number to Words<\/strong><span>Write numbers in words for cheques, US or Indian style.<\/span><\/a><a class=\"qt-card\" href=\"https:\/\/www.quickonlinetips.com\/archives\/tools\/number-base-converter\/\"><strong>Number Base Converter<\/strong><span>Binary, decimal, hex and octal conversions.<\/span><\/a><a class=\"qt-card\" href=\"https:\/\/www.quickonlinetips.com\/archives\/tools\/days-between-dates\/\"><strong>Days Between Dates<\/strong><span>Count days, weeks and business days between two dates.<\/span><\/a><a class=\"qt-card\" href=\"https:\/\/www.quickonlinetips.com\/archives\/tools\/age-calculator\/\"><strong>Age Calculator<\/strong><span>Your exact age in years, months and days, plus next birthday.<\/span><\/a><\/div>\n<p>See all of them on the <a href=\"https:\/\/www.quickonlinetips.com\/archives\/tools\/\">QuickOnlineTips free online tools<\/a> page and play our <a href=\"https:\/\/www.quickonlinetips.com\/archives\/games\/\">free online games<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Convert Celsius to Fahrenheit, Fahrenheit to Celsius and Kelvin in one box. Type a temperature in any of the three fields and the others update as you type, with the formula shown so you can do it yourself next time. Celsius (\u00b0C) Fahrenheit (\u00b0F) Kelvin (K) \u221240 \u00b0CFreezing 0 \u00b0CRoom 20 \u00b0CBody 37 \u00b0CBoiling 100&#8230;<\/p>\n","protected":false},"author":4,"featured_media":66613,"parent":65595,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_kad_post_transparent":"","_kad_post_title":"","_kad_post_layout":"","_kad_post_sidebar_id":"","_kad_post_content_style":"","_kad_post_vertical_padding":"","_kad_post_feature":"","_kad_post_feature_position":"","_kad_post_header":false,"_kad_post_footer":false,"_kad_post_classname":"","footnotes":""},"class_list":["post-65819","page","type-page","status-publish","has-post-thumbnail","hentry"],"_links":{"self":[{"href":"https:\/\/www.quickonlinetips.com\/archives\/wp-json\/wp\/v2\/pages\/65819","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.quickonlinetips.com\/archives\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.quickonlinetips.com\/archives\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.quickonlinetips.com\/archives\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/www.quickonlinetips.com\/archives\/wp-json\/wp\/v2\/comments?post=65819"}],"version-history":[{"count":3,"href":"https:\/\/www.quickonlinetips.com\/archives\/wp-json\/wp\/v2\/pages\/65819\/revisions"}],"predecessor-version":[{"id":66461,"href":"https:\/\/www.quickonlinetips.com\/archives\/wp-json\/wp\/v2\/pages\/65819\/revisions\/66461"}],"up":[{"embeddable":true,"href":"https:\/\/www.quickonlinetips.com\/archives\/wp-json\/wp\/v2\/pages\/65595"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.quickonlinetips.com\/archives\/wp-json\/wp\/v2\/media\/66613"}],"wp:attachment":[{"href":"https:\/\/www.quickonlinetips.com\/archives\/wp-json\/wp\/v2\/media?parent=65819"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}