{"id":2410,"date":"2026-02-11T00:05:55","date_gmt":"2026-02-10T22:05:55","guid":{"rendered":"https:\/\/bio-me.bio\/?page_id=2410"},"modified":"2026-02-17T20:53:32","modified_gmt":"2026-02-17T18:53:32","slug":"calories-burned-calculator-met","status":"publish","type":"page","link":"https:\/\/bio-me.bio\/?page_id=2410","title":{"rendered":"Calories Burned Calculator (MET)"},"content":{"rendered":"\n<div class=\"eco-tool wp-block-group\" id=\"eco-tool-met-2f4a7\">\n  <div class=\"eco-tool__header\">\n    <h2 class=\"eco-tool__title\">Calories Burned Calculator (MET)<\/h2>\n    <p class=\"eco-tool__lead\">\n      Estimate calories burned using MET, body weight, and exercise time. Educational estimate.\n    <\/p>\n  <\/div>\n\n  <form class=\"eco-tool__form\" id=\"eco-met-form-2f4a7\" novalidate>\n    <div class=\"eco-tool__grid3\">\n      <!-- Activity -->\n      <div class=\"eco-tool__field\">\n        <label class=\"eco-tool__label\" for=\"eco-met-activity-2f4a7\">\n          Activity<br>(MET)\n        <\/label>\n        <select class=\"eco-tool__input\" id=\"eco-met-activity-2f4a7\">\n          <option value=\"custom\" selected>Custom MET<\/option>\n          <option value=\"1.3\">Sitting (1.3)<\/option>\n          <option value=\"2.5\">Slow walking (2.5)<\/option>\n          <option value=\"3.3\">Walking 5 km\/h (3.3)<\/option>\n          <option value=\"5.0\">Fast walking (5.0)<\/option>\n          <option value=\"6.0\">Cycling (moderate) (6.0)<\/option>\n          <option value=\"8.0\">Running (moderate) (8.0)<\/option>\n          <option value=\"10.0\">Running (hard) (10.0)<\/option>\n          <option value=\"6.5\">Swimming (moderate) (6.5)<\/option>\n          <option value=\"7.0\">Strength training (7.0)<\/option>\n        <\/select>\n        <div class=\"eco-tool__hint\">Pick a preset or enter your own MET value.<\/div>\n      <\/div>\n\n      <!-- MET input -->\n      <div class=\"eco-tool__field\">\n        <label class=\"eco-tool__label\" for=\"eco-met-met-2f4a7\">\n          MET<br>value\n        <\/label>\n        <input class=\"eco-tool__input\" id=\"eco-met-met-2f4a7\" type=\"number\" min=\"0\" step=\"0.1\" value=\"3.3\" inputmode=\"decimal\" \/>\n        <div class=\"eco-tool__hint\">Typical range: ~1\u201312+ MET.<\/div>\n      <\/div>\n\n      <!-- Weight -->\n      <div class=\"eco-tool__field\">\n        <label class=\"eco-tool__label\" for=\"eco-met-weight-2f4a7\">\n          Body weight<br>(kg)\n        <\/label>\n        <input class=\"eco-tool__input\" id=\"eco-met-weight-2f4a7\" type=\"number\" min=\"0\" step=\"any\" placeholder=\"e.g., 70\" inputmode=\"decimal\" \/>\n        <div class=\"eco-tool__hint\">Enter your weight in kilograms.<\/div>\n      <\/div>\n\n      <!-- Time -->\n      <div class=\"eco-tool__field\">\n        <label class=\"eco-tool__label\" for=\"eco-met-time-2f4a7\">\n          Time<br>value\n        <\/label>\n        <input class=\"eco-tool__input\" id=\"eco-met-time-2f4a7\" type=\"number\" min=\"0\" step=\"any\" value=\"30\" inputmode=\"decimal\" \/>\n        <div class=\"eco-tool__hint\">Enter time and choose unit.<\/div>\n      <\/div>\n\n      <!-- Time unit -->\n      <div class=\"eco-tool__field\">\n        <label class=\"eco-tool__label\" for=\"eco-met-timeu-2f4a7\">\n          Time<br>unit\n        <\/label>\n        <select class=\"eco-tool__input\" id=\"eco-met-timeu-2f4a7\">\n          <option value=\"min\" selected>Minutes<\/option>\n          <option value=\"hr\">Hours<\/option>\n        <\/select>\n        <div class=\"eco-tool__hint\">We convert to hours internally.<\/div>\n      <\/div>\n\n      <!-- Formula -->\n      <div class=\"eco-tool__field\">\n        <label class=\"eco-tool__label\">Formula<\/label>\n        <div class=\"eco-tool__noteBox\">\n          Calories \u2248 MET \u00d7 weight(kg) \u00d7 time(hours)\n        <\/div>\n        <div class=\"eco-tool__hint\">This is a simplified estimate.<\/div>\n      <\/div>\n    <\/div>\n\n    <div class=\"eco-tool__actions\">\n      <button type=\"button\" class=\"wp-element-button eco-tool__btn\" id=\"eco-met-calc-2f4a7\">Calculate<\/button>\n      <button type=\"button\" class=\"wp-element-button eco-tool__btn eco-tool__btn--ghost\" id=\"eco-met-reset-2f4a7\">Reset<\/button>\n      <div class=\"eco-tool__error\" id=\"eco-met-error-2f4a7\" aria-live=\"polite\"><\/div>\n    <\/div>\n  <\/form>\n\n  <div class=\"eco-tool__result\" id=\"eco-met-result-2f4a7\" hidden>\n    <h3 class=\"eco-tool__subtitle\">Results<\/h3>\n\n    <div class=\"eco-tool__cards\">\n      <div class=\"eco-tool__card\">\n        <div class=\"eco-tool__metric-label\">Calories burned<\/div>\n        <div class=\"eco-tool__metric-value\" id=\"eco-met-cal-2f4a7\">\u2014<\/div>\n        <div class=\"eco-tool__metric-sub\" id=\"eco-met-rate-2f4a7\">\u2014<\/div>\n      <\/div>\n\n      <div class=\"eco-tool__card\">\n        <div class=\"eco-tool__metric-label\">Calculation<\/div>\n        <div class=\"eco-tool__metric-sub\" id=\"eco-met-eq-2f4a7\">\u2014<\/div>\n        <div class=\"eco-tool__metric-sub eco-tool__muted\">Rounded for readability<\/div>\n      <\/div>\n    <\/div>\n\n    <p class=\"eco-tool__note\">\n      MET values vary by intensity and person. Use this as an approximate estimate.\n    <\/p>\n  <\/div>\n<\/div>\n\n<style>\n.eco-tool{border:1px solid rgba(0,0,0,.12);border-radius:12px;padding:16px}\n.eco-tool__grid3{display:grid;grid-template-columns:1fr;gap:16px}\n@media (min-width:860px){.eco-tool__grid3{grid-template-columns:1fr 1fr 1fr}}\n.eco-tool__field{display:flex;flex-direction:column;gap:6px}\n.eco-tool__label{font-weight:600}\n.eco-tool__input{height:44px;padding:0 12px;border:1px solid rgba(0,0,0,.2);border-radius:10px;background:#fff;font:inherit;box-sizing:border-box}\n.eco-tool select.eco-tool__input{appearance:none;padding-right:40px}\n.eco-tool__hint{font-size:.92em;opacity:.78;min-height:38px}\n.eco-tool__noteBox{border:1px solid rgba(0,0,0,.12);border-radius:12px;padding:12px;background:rgba(0,0,0,.02);min-height:44px}\n\n.eco-tool__actions{display:flex;gap:10px;margin-top:16px;align-items:center;flex-wrap:wrap}\n.eco-tool__btn{padding:10px 22px}\n.eco-tool__btn--ghost{background:transparent!important;border:1px solid rgba(0,0,0,.2)!important}\n.eco-tool__btn--ghost:hover,.eco-tool__btn--ghost:focus{background:rgba(0,0,0,.06)!important;border-color:rgba(0,0,0,.35)!important}\n.eco-tool__error{font-weight:600;min-height:1.2em;flex:1 1 240px}\n\n.eco-tool__result{margin-top:16px}\n.eco-tool__subtitle{margin:0 0 10px}\n.eco-tool__cards{display:grid;gap:10px;grid-template-columns:1fr}\n@media (min-width:860px){.eco-tool__cards{grid-template-columns:1fr 1fr}}\n.eco-tool__card{border:1px solid rgba(0,0,0,.12);border-radius:12px;padding:12px}\n.eco-tool__metric-label{opacity:.85;font-weight:600}\n.eco-tool__metric-value{font-size:1.6em;font-weight:800;margin-top:6px;line-height:1.1}\n.eco-tool__metric-sub{opacity:.85;margin-top:6px}\n.eco-tool__muted{opacity:.8}\n.eco-tool__note{margin-top:10px;opacity:.9}\n<\/style>\n\n<script>\n(function(){\n  const S=\"2f4a7\";\n  const el=(id)=>document.getElementById(id+\"-\"+S);\n\n  const actEl=el(\"eco-met-activity\");\n  const metEl=el(\"eco-met-met\");\n  const wEl=el(\"eco-met-weight\");\n  const tEl=el(\"eco-met-time\");\n  const tuEl=el(\"eco-met-timeu\");\n\n  const calcBtn=el(\"eco-met-calc\");\n  const resetBtn=el(\"eco-met-reset\");\n  const errEl=el(\"eco-met-error\");\n\n  const resEl=el(\"eco-met-result\");\n  const calEl=el(\"eco-met-cal\");\n  const rateEl=el(\"eco-met-rate\");\n  const eqEl=el(\"eco-met-eq\");\n\n  function setError(msg){ errEl.textContent = msg || \"\"; }\n  function fmt(n,d){\n    if(!Number.isFinite(n)) return \"\u2014\";\n    return Number(n).toLocaleString(undefined,{maximumFractionDigits:d});\n  }\n\n  function syncPreset(){\n    const v = actEl.value;\n    if(v !== \"custom\"){\n      metEl.value = v;\n    }\n  }\n\n  function calculate(){\n    setError(\"\");\n\n    const met = Number(metEl.value);\n    const kg = Number(wEl.value);\n    const timeVal = Number(tEl.value);\n    const timeH = (tuEl.value === \"min\") ? (timeVal \/ 60) : timeVal;\n\n    if(!Number.isFinite(met) || met <= 0){\n      setError(\"Enter a valid MET value.\");\n      resEl.hidden = true;\n      return;\n    }\n    if(!Number.isFinite(kg) || kg <= 0){\n      setError(\"Enter a valid body weight (kg).\");\n      resEl.hidden = true;\n      return;\n    }\n    if(!Number.isFinite(timeVal) || timeVal <= 0 || timeH <= 0){\n      setError(\"Enter a valid time.\");\n      resEl.hidden = true;\n      return;\n    }\n\n    const calories = met * kg * timeH;\n    const perHour = met * kg;\n\n    calEl.textContent = `${fmt(calories,0)} kcal`;\n    rateEl.textContent = `${fmt(perHour,0)} kcal\/hour`;\n    eqEl.textContent = `Calories = ${fmt(met,2)} \u00d7 ${fmt(kg,1)} \u00d7 ${fmt(timeH,3)} = ${fmt(calories,2)} kcal`;\n\n    resEl.hidden = false;\n  }\n\n  function reset(){\n    actEl.value = \"custom\";\n    metEl.value = \"3.3\";\n    wEl.value = \"\";\n    tEl.value = \"30\";\n    tuEl.value = \"min\";\n    setError(\"\");\n    resEl.hidden = true;\n  }\n\n  actEl.addEventListener(\"change\", syncPreset);\n  calcBtn.addEventListener(\"click\", calculate);\n  resetBtn.addEventListener(\"click\", reset);\n\n  \/\/ init\n  syncPreset();\n})();\n<\/script>\n\n","protected":false},"excerpt":{"rendered":"<p>Calories Burned Calculator (MET) Estimate calories burned using MET, body weight, and exercise time. Educational estimate. Activity(MET) Custom METSitting (1.3)Slow walking (2.5)Walking 5 km\/h (3.3)Fast walking (5.0)Cycling (moderate) (6.0)Running (moderate)&hellip;<\/p>\n","protected":false},"author":2,"featured_media":0,"parent":2457,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_sitemap_exclude":false,"_sitemap_priority":"","_sitemap_frequency":"","footnotes":""},"_links":{"self":[{"href":"https:\/\/bio-me.bio\/index.php?rest_route=\/wp\/v2\/pages\/2410"}],"collection":[{"href":"https:\/\/bio-me.bio\/index.php?rest_route=\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/bio-me.bio\/index.php?rest_route=\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/bio-me.bio\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/bio-me.bio\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=2410"}],"version-history":[{"count":1,"href":"https:\/\/bio-me.bio\/index.php?rest_route=\/wp\/v2\/pages\/2410\/revisions"}],"predecessor-version":[{"id":2411,"href":"https:\/\/bio-me.bio\/index.php?rest_route=\/wp\/v2\/pages\/2410\/revisions\/2411"}],"up":[{"embeddable":true,"href":"https:\/\/bio-me.bio\/index.php?rest_route=\/wp\/v2\/pages\/2457"}],"wp:attachment":[{"href":"https:\/\/bio-me.bio\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2410"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}