{"id":3148,"date":"2026-05-09T12:39:56","date_gmt":"2026-05-09T10:39:56","guid":{"rendered":"https:\/\/bio-me.bio\/?page_id=3148"},"modified":"2026-05-09T12:39:57","modified_gmt":"2026-05-09T10:39:57","slug":"heat-index-risk-calculator","status":"publish","type":"page","link":"https:\/\/bio-me.bio\/?page_id=3148","title":{"rendered":"Heat Index Risk Calculator"},"content":{"rendered":"\n<div class=\"eco-tool wp-block-group\" id=\"eco-tool-heat-index-2fa8c\">\n  <div class=\"eco-tool__header\">\n    <h2 class=\"eco-tool__title\">Heat Index Risk Calculator<\/h2>\n    <p class=\"eco-tool__lead\">\n      Estimate how hot it feels outside and check basic heat-risk level.\n    <\/p>\n  <\/div>\n\n  <form class=\"eco-tool__form\" id=\"eco-heat-form-2fa8c\" novalidate>\n    <div class=\"eco-tool__grid3\">\n\n      <div class=\"eco-tool__field\">\n        <label class=\"eco-tool__label\" for=\"eco-heat-temp-2fa8c\">Air temperature<br>(\u00b0C)<\/label>\n        <input class=\"eco-tool__input\" id=\"eco-heat-temp-2fa8c\" type=\"number\" min=\"-20\" step=\"0.1\" value=\"32\">\n        <div class=\"eco-tool__hint\">Outdoor air temperature.<\/div>\n      <\/div>\n\n      <div class=\"eco-tool__field\">\n        <label class=\"eco-tool__label\" for=\"eco-heat-humidity-2fa8c\">Relative humidity<br>(%)<\/label>\n        <input class=\"eco-tool__input\" id=\"eco-heat-humidity-2fa8c\" type=\"number\" min=\"0\" max=\"100\" step=\"1\" value=\"70\">\n        <div class=\"eco-tool__hint\">Higher humidity makes heat feel worse.<\/div>\n      <\/div>\n\n      <div class=\"eco-tool__field\">\n        <label class=\"eco-tool__label\" for=\"eco-heat-activity-2fa8c\">Activity<br>level<\/label>\n        <select class=\"eco-tool__input\" id=\"eco-heat-activity-2fa8c\">\n          <option value=\"0\">Resting<\/option>\n          <option value=\"2\">Walking<\/option>\n          <option value=\"4\">Outdoor work<\/option>\n          <option value=\"6\">Heavy exercise<\/option>\n        <\/select>\n        <div class=\"eco-tool__hint\">Activity increases practical heat risk.<\/div>\n      <\/div>\n\n      <div class=\"eco-tool__field\">\n        <label class=\"eco-tool__label\" for=\"eco-heat-view-2fa8c\">Main result<br>view<\/label>\n        <select class=\"eco-tool__input\" id=\"eco-heat-view-2fa8c\">\n          <option value=\"feels\">Feels-like temperature<\/option>\n          <option value=\"risk\">Risk level<\/option>\n        <\/select>\n        <div class=\"eco-tool__hint\">Choose the main output.<\/div>\n      <\/div>\n\n    <\/div>\n\n    <div class=\"eco-tool__actions\">\n      <button type=\"button\" class=\"wp-element-button eco-tool__btn\" onclick=\"calc2fa8c()\">Calculate<\/button>\n      <button type=\"button\" class=\"wp-element-button eco-tool__btn eco-tool__btn--ghost\" onclick=\"reset2fa8c()\">Reset<\/button>\n      <div class=\"eco-tool__error\" id=\"err-2fa8c\"><\/div>\n    <\/div>\n  <\/form>\n\n  <div class=\"eco-tool__result\" id=\"res-2fa8c\" hidden>\n    <div class=\"eco-tool__cards\">\n\n      <div class=\"eco-tool__card\">\n        <div class=\"eco-tool__metric-label\">Heat index result<\/div>\n        <div class=\"eco-tool__metric-value\" id=\"main-2fa8c\"><\/div>\n        <div class=\"eco-tool__metric-sub\" id=\"sub-2fa8c\"><\/div>\n      <\/div>\n\n      <div class=\"eco-tool__card\">\n        <div class=\"eco-tool__metric-label\">Risk level<\/div>\n        <div class=\"eco-tool__metric-value\" id=\"risk-2fa8c\"><\/div>\n        <div class=\"eco-tool__metric-sub\" id=\"risk-sub-2fa8c\"><\/div>\n      <\/div>\n\n    <\/div>\n\n    <p class=\"eco-tool__note\">\n      Approximate estimate only. Real heat stress also depends on sun exposure, wind, hydration, clothing, age, and health.\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__header{margin-bottom:12px}\n.eco-tool__title{margin:0 0 8px}\n.eco-tool__lead{margin:0;opacity:.9}\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,.6) 50%),linear-gradient(135deg,rgba(0,0,0,.6) 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{background:rgba(0,0,0,.06)!important}\n.eco-tool__error{font-weight:600}\n.eco-tool__result{margin-top:16px}\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}\n.eco-tool__metric-sub{opacity:.85;margin-top:6px}\n.eco-tool__note{margin:10px 0 0;opacity:.9}\n<\/style>\n\n<script>\nfunction calc2fa8c(){\n\n  let tempC=+document.getElementById('eco-heat-temp-2fa8c').value;\n  let humidity=+document.getElementById('eco-heat-humidity-2fa8c').value;\n  let activity=+document.getElementById('eco-heat-activity-2fa8c').value;\n  let view=document.getElementById('eco-heat-view-2fa8c').value;\n  let err=document.getElementById('err-2fa8c');\n\n  err.textContent=\"\";\n\n  if(!Number.isFinite(tempC)||!Number.isFinite(humidity)||humidity<0||humidity>100){\n    err.textContent=\"Please enter valid values.\";\n    document.getElementById('res-2fa8c').hidden=true;\n    return;\n  }\n\n  let tempF=tempC*9\/5+32;\n  let hiF=tempF;\n\n  if(tempF>=80){\n    hiF=-42.379+2.04901523*tempF+10.14333127*humidity-0.22475541*tempF*humidity-0.00683783*tempF*tempF-0.05481717*humidity*humidity+0.00122874*tempF*tempF*humidity+0.00085282*tempF*humidity*humidity-0.00000199*tempF*tempF*humidity*humidity;\n  }\n\n  let hiC=(hiF-32)*5\/9;\n  let adjusted=hiC+activity;\n\n  let risk=\"Low\";\n  let note=\"Heat risk is relatively low for most healthy adults.\";\n\n  if(adjusted>=40){\n    risk=\"High\";\n    note=\"Heat stress risk is high. Reduce outdoor activity and cool down.\";\n  }else if(adjusted>=32){\n    risk=\"Moderate\";\n    note=\"Take breaks, drink water, and avoid long exposure.\";\n  }else if(adjusted>=27){\n    risk=\"Mild\";\n    note=\"Some discomfort is possible, especially during activity.\";\n  }\n\n  document.getElementById('main-2fa8c').innerText=\n    view===\"risk\" ? risk : adjusted.toFixed(1)+\" \u00b0C\";\n\n  document.getElementById('sub-2fa8c').innerText=\n    view===\"risk\" ? \"Estimated heat-risk category\" : \"Feels-like temperature adjusted for activity\";\n\n  document.getElementById('risk-2fa8c').innerText=risk;\n  document.getElementById('risk-sub-2fa8c').innerText=note;\n\n  document.getElementById('res-2fa8c').hidden=false;\n}\n\nfunction reset2fa8c(){\n  document.getElementById('eco-heat-temp-2fa8c').value=32;\n  document.getElementById('eco-heat-humidity-2fa8c').value=70;\n  document.getElementById('eco-heat-activity-2fa8c').value=\"0\";\n  document.getElementById('eco-heat-view-2fa8c').value=\"feels\";\n  document.getElementById('err-2fa8c').textContent=\"\";\n  document.getElementById('res-2fa8c').hidden=true;\n}\n<\/script>\n","protected":false},"excerpt":{"rendered":"<p>Heat Index Risk Calculator Estimate how hot it feels outside and check basic heat-risk level. Air temperature(\u00b0C) Outdoor air temperature. Relative humidity(%) Higher humidity makes heat feel worse. Activitylevel RestingWalkingOutdoor&hellip;<\/p>\n","protected":false},"author":2,"featured_media":0,"parent":2666,"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\/3148"}],"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=3148"}],"version-history":[{"count":1,"href":"https:\/\/bio-me.bio\/index.php?rest_route=\/wp\/v2\/pages\/3148\/revisions"}],"predecessor-version":[{"id":3149,"href":"https:\/\/bio-me.bio\/index.php?rest_route=\/wp\/v2\/pages\/3148\/revisions\/3149"}],"up":[{"embeddable":true,"href":"https:\/\/bio-me.bio\/index.php?rest_route=\/wp\/v2\/pages\/2666"}],"wp:attachment":[{"href":"https:\/\/bio-me.bio\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=3148"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}