{"id":2577,"date":"2026-03-03T23:36:32","date_gmt":"2026-03-03T21:36:32","guid":{"rendered":"https:\/\/bio-me.bio\/?page_id=2577"},"modified":"2026-03-09T13:23:24","modified_gmt":"2026-03-09T11:23:24","slug":"food-carbon-footprint-calculator","status":"publish","type":"page","link":"https:\/\/bio-me.bio\/?page_id=2577","title":{"rendered":"Food Carbon Footprint Calculator"},"content":{"rendered":"\n<div class=\"eco-tool wp-block-group\" id=\"eco-tool-foodco2-1c7a6\">\n  <div class=\"eco-tool__header\">\n    <h2 class=\"eco-tool__title\">Food Carbon Footprint Calculator<\/h2>\n    <p class=\"eco-tool__lead\">\n      Estimate CO\u2082e emissions from common foods using adjustable average factors (educational tool).\n    <\/p>\n  <\/div>\n\n  <form class=\"eco-tool__form\" id=\"eco-food-form-1c7a6\" novalidate>\n    <div class=\"eco-tool__grid3\">\n\n      <div class=\"eco-tool__field\">\n        <label class=\"eco-tool__label\" for=\"eco-food-item-1c7a6\">Food item<\/label>\n        <select class=\"eco-tool__input\" id=\"eco-food-item-1c7a6\">\n          <option value=\"beef\" selected>Beef<\/option>\n          <option value=\"lamb\">Lamb<\/option>\n          <option value=\"pork\">Pork<\/option>\n          <option value=\"chicken\">Chicken<\/option>\n          <option value=\"fish\">Fish<\/option>\n          <option value=\"cheese\">Cheese<\/option>\n          <option value=\"milk\">Milk<\/option>\n          <option value=\"eggs\">Eggs<\/option>\n          <option value=\"rice\">Rice<\/option>\n          <option value=\"beans\">Beans \/ lentils<\/option>\n          <option value=\"vegetables\">Vegetables<\/option>\n          <option value=\"fruit\">Fruit<\/option>\n          <option value=\"custom\">Custom factor\u2026<\/option>\n        <\/select>\n        <div class=\"eco-tool__hint\">Pick a common food or enter your own factor.<\/div>\n      <\/div>\n\n      <div class=\"eco-tool__field\">\n        <label class=\"eco-tool__label\" for=\"eco-food-amount-1c7a6\">Amount per week<\/label>\n        <input class=\"eco-tool__input\" id=\"eco-food-amount-1c7a6\" type=\"number\" min=\"0\" step=\"1\" value=\"500\" inputmode=\"numeric\" \/>\n        <div class=\"eco-tool__hint\">Enter grams per week (e.g., 500 g).<\/div>\n      <\/div>\n\n      <div class=\"eco-tool__field\">\n        <label class=\"eco-tool__label\" for=\"eco-food-unit-1c7a6\">Unit<\/label>\n        <select class=\"eco-tool__input\" id=\"eco-food-unit-1c7a6\">\n          <option value=\"g\" selected>grams (g)<\/option>\n          <option value=\"kg\">kilograms (kg)<\/option>\n          <option value=\"serv\">servings (1 serving \u2248 150 g)<\/option>\n        <\/select>\n        <div class=\"eco-tool__hint\">Servings are approximated as 150 g.<\/div>\n      <\/div>\n\n      <div class=\"eco-tool__field\" id=\"eco-food-custom-wrap-1c7a6\" style=\"display:none;\">\n        <label class=\"eco-tool__label\" for=\"eco-food-custom-1c7a6\">Custom factor (kg CO\u2082e per kg food)<\/label>\n        <input class=\"eco-tool__input\" id=\"eco-food-custom-1c7a6\" type=\"number\" min=\"0\" step=\"0.1\" value=\"10\" inputmode=\"decimal\" \/>\n        <div class=\"eco-tool__hint\">Use a factor you trust for your region or product.<\/div>\n      <\/div>\n\n      <div class=\"eco-tool__field\">\n        <label class=\"eco-tool__label\" for=\"eco-food-months-1c7a6\">Month length<\/label>\n        <select class=\"eco-tool__input\" id=\"eco-food-months-1c7a6\">\n          <option value=\"4\">4 weeks (simple)<\/option>\n          <option value=\"4.33\" selected>4.33 weeks (average)<\/option>\n        <\/select>\n        <div class=\"eco-tool__hint\">Used to calculate monthly totals.<\/div>\n      <\/div>\n\n    <\/div>\n\n    <div class=\"eco-tool__actions\">\n      <button type=\"button\" class=\"wp-element-button eco-tool__btn\" id=\"eco-food-calc-1c7a6\">Calculate<\/button>\n      <button type=\"button\" class=\"wp-element-button eco-tool__btn eco-tool__btn--ghost\" id=\"eco-food-reset-1c7a6\">Reset<\/button>\n      <div class=\"eco-tool__error\" id=\"eco-food-error-1c7a6\" aria-live=\"polite\"><\/div>\n    <\/div>\n  <\/form>\n\n  <div class=\"eco-tool__result\" id=\"eco-food-result-1c7a6\" hidden>\n    <h3 class=\"eco-tool__subtitle\">Result<\/h3>\n\n    <div class=\"eco-tool__cards\">\n      <div class=\"eco-tool__card\">\n        <div class=\"eco-tool__metric-label\">CO\u2082e per week<\/div>\n        <div class=\"eco-tool__metric-value\" id=\"eco-food-week-1c7a6\">\u2014<\/div>\n        <div class=\"eco-tool__metric-sub\" id=\"eco-food-weeksub-1c7a6\"><\/div>\n      <\/div>\n\n      <div class=\"eco-tool__card\">\n        <div class=\"eco-tool__metric-label\">CO\u2082e per year<\/div>\n        <div class=\"eco-tool__metric-value\" id=\"eco-food-year-1c7a6\">\u2014<\/div>\n        <div class=\"eco-tool__metric-sub\" id=\"eco-food-years-1c7a6\"><\/div>\n      <\/div>\n    <\/div>\n\n    <div class=\"eco-tool__card eco-tool__card--wide\">\n      <div class=\"eco-tool__metric-label\">Monthly estimate<\/div>\n      <div class=\"eco-tool__metric-value\" id=\"eco-food-month-1c7a6\">\u2014<\/div>\n      <div class=\"eco-tool__metric-sub\" id=\"eco-food-note-1c7a6\"><\/div>\n    <\/div>\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{width:100%;height:44px;padding:0 12px;border:1px solid rgba(0,0,0,.2);border-radius:10px;background:#fff;box-sizing:border-box;font:inherit}\n.eco-tool select.eco-tool__input{appearance:none;-webkit-appearance:none;line-height:44px;padding-right:40px;background-image:linear-gradient(45deg, transparent 50%, rgba(0,0,0,.60) 50%),linear-gradient(135deg, rgba(0,0,0,.60) 50%, transparent 50%);background-position:calc(100% - 18px) 50%,calc(100% - 12px) 50%;background-size:6px 6px;background-repeat:no-repeat}\n.eco-tool__hint{font-size:.92em;opacity:.78;min-height:38px}\n.eco-tool__actions{display:flex;flex-wrap:wrap;gap:10px;align-items:center;margin-top:16px}\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{min-height:1.2em;font-weight:600;flex:1 1 240px}\n.eco-tool__result{margin-top:16px}\n.eco-tool__subtitle{margin:0 0 10px}\n.eco-tool__cards{display:grid;gap:10px;margin-top:16px;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__card--wide{margin-top:10px}\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<\/style>\n\n<script>\n(function(){\n  const S=\"1c7a6\";\n  const el=id=>document.getElementById(id+\"-\"+S);\n\n  const itemEl=el(\"eco-food-item\");\n  const amountEl=el(\"eco-food-amount\");\n  const unitEl=el(\"eco-food-unit\");\n  const customWrap=el(\"eco-food-custom-wrap\");\n  const customEl=el(\"eco-food-custom\");\n  const weeksEl=el(\"eco-food-months\");\n\n  const calcBtn=el(\"eco-food-calc\");\n  const resetBtn=el(\"eco-food-reset\");\n  const errEl=el(\"eco-food-error\");\n\n  const resEl=el(\"eco-food-result\");\n  const weekOut=el(\"eco-food-week\");\n  const weekSub=el(\"eco-food-weeksub\");\n  const monthOut=el(\"eco-food-month\");\n  const yearOut=el(\"eco-food-year\");\n  const yearSub=el(\"eco-food-years\");\n  const noteOut=el(\"eco-food-note\");\n\n  function setError(m){ errEl.textContent=m||\"\"; }\n\n  function fmt(x){\n    return x.toLocaleString(undefined,{minimumFractionDigits:2,maximumFractionDigits:2});\n  }\n\n  const factors = {\n    beef: 27.0,\n    lamb: 39.0,\n    pork: 12.0,\n    chicken: 6.9,\n    fish: 5.0,\n    cheese: 13.5,\n    milk: 1.9,\n    eggs: 4.8,\n    rice: 4.0,\n    beans: 1.0,\n    vegetables: 0.5,\n    fruit: 0.7\n  };\n\n  function updateCustom(){\n    customWrap.style.display = (itemEl.value===\"custom\") ? \"\" : \"none\";\n  }\n\n  function amountToKg(v, unit){\n    if(unit===\"kg\") return v;\n    if(unit===\"serv\") return (v * 150) \/ 1000;\n    return v\/1000;\n  }\n\n  calcBtn.addEventListener(\"click\", function(){\n    setError(\"\");\n\n    const amt=Number(amountEl.value);\n    if(!Number.isFinite(amt) || amt<0){\n      setError(\"Please enter a valid amount (0+).\");\n      resEl.hidden=true;\n      return;\n    }\n\n    const kg = amountToKg(amt, unitEl.value);\n\n    let factor = (itemEl.value===\"custom\") ? Number(customEl.value) : factors[itemEl.value];\n    if(!Number.isFinite(factor) || factor<0){\n      setError(\"Please enter a valid CO\u2082e factor (0+).\");\n      resEl.hidden=true;\n      return;\n    }\n\n    const week = kg * factor;\n    const month = week * Number(weeksEl.value);\n    const year = week * 52;\n\n    weekOut.textContent = `${fmt(week)} kg CO\u2082e`;\n    monthOut.textContent = `${fmt(month)} kg CO\u2082e`;\n    yearOut.textContent = `${fmt(year)} kg CO\u2082e`;\n\n    weekSub.textContent = \"Based on an adjustable average emissions factor.\";\n    yearSub.textContent = \"Estimate only (varies by region and production).\";\n    noteOut.textContent = \"Tip: reducing food waste often lowers footprint significantly.\";\n\n    resEl.hidden=false;\n  });\n\n  resetBtn.addEventListener(\"click\", function(){\n    setError(\"\");\n    itemEl.value=\"beef\";\n    amountEl.value=\"500\";\n    unitEl.value=\"g\";\n    customEl.value=\"10\";\n    weeksEl.value=\"4.33\";\n    updateCustom();\n    resEl.hidden=true;\n  });\n\n  itemEl.addEventListener(\"change\", updateCustom);\n  updateCustom();\n})();\n<\/script>\n","protected":false},"excerpt":{"rendered":"<p>Food Carbon Footprint Calculator Estimate CO\u2082e emissions from common foods using adjustable average factors (educational tool). Food item BeefLambPorkChickenFishCheeseMilkEggsRiceBeans \/ lentilsVegetablesFruitCustom factor\u2026 Pick a common food or enter your own&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\/2577"}],"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=2577"}],"version-history":[{"count":2,"href":"https:\/\/bio-me.bio\/index.php?rest_route=\/wp\/v2\/pages\/2577\/revisions"}],"predecessor-version":[{"id":2602,"href":"https:\/\/bio-me.bio\/index.php?rest_route=\/wp\/v2\/pages\/2577\/revisions\/2602"}],"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=2577"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}