{"id":2399,"date":"2026-02-11T00:09:43","date_gmt":"2026-02-10T22:09:43","guid":{"rendered":"https:\/\/science-x.net\/?page_id=2399"},"modified":"2026-02-11T00:10:27","modified_gmt":"2026-02-10T22:10:27","slug":"dilution-calculator-c%e2%82%81v%e2%82%81-c%e2%82%82v%e2%82%82","status":"publish","type":"page","link":"https:\/\/science-x.net\/?page_id=2399","title":{"rendered":"Dilution Calculator (C\u2081V\u2081 = C\u2082V\u2082) !"},"content":{"rendered":"\n<div class=\"eco-tool wp-block-group\" id=\"eco-tool-dil-6f1c3\">\n  <div class=\"eco-tool__header\">\n    <h2 class=\"eco-tool__title\">Dilution Calculator (C\u2081V\u2081 = C\u2082V\u2082)<\/h2>\n    <p class=\"eco-tool__lead\">\n      Enter three values to calculate the fourth. Use consistent concentration units (e.g., M, mg\/mL).\n    <\/p>\n  <\/div>\n\n  <form class=\"eco-tool__form\" id=\"eco-dil-form-6f1c3\" novalidate>\n    <div class=\"eco-tool__grid3\">\n      <div class=\"eco-tool__field\">\n        <label class=\"eco-tool__label\" for=\"eco-dil-unknown-6f1c3\">Solve for<br>(unknown)<\/label>\n        <select class=\"eco-tool__input\" id=\"eco-dil-unknown-6f1c3\">\n          <option value=\"c1\">C\u2081 (initial concentration)<\/option>\n          <option value=\"v1\">V\u2081 (initial volume)<\/option>\n          <option value=\"c2\">C\u2082 (final concentration)<\/option>\n          <option value=\"v2\" selected>V\u2082 (final volume)<\/option>\n        <\/select>\n        <div class=\"eco-tool__hint\">Pick which value to calculate.<\/div>\n      <\/div>\n\n      <div class=\"eco-tool__field\">\n        <label class=\"eco-tool__label\" for=\"eco-dil-c1-6f1c3\">C\u2081<br>(initial)<\/label>\n        <input class=\"eco-tool__input\" id=\"eco-dil-c1-6f1c3\" type=\"number\" step=\"any\" placeholder=\"e.g., 10\" \/>\n        <div class=\"eco-tool__hint\">Any concentration unit (keep consistent).<\/div>\n      <\/div>\n\n      <div class=\"eco-tool__field\">\n        <label class=\"eco-tool__label\" for=\"eco-dil-v1-6f1c3\">V\u2081<br>(initial)<\/label>\n        <input class=\"eco-tool__input\" id=\"eco-dil-v1-6f1c3\" type=\"number\" step=\"any\" placeholder=\"e.g., 5\" \/>\n        <div class=\"eco-tool__hint\">Any volume unit (mL, L, etc.).<\/div>\n      <\/div>\n\n      <div class=\"eco-tool__field\">\n        <label class=\"eco-tool__label\" for=\"eco-dil-c2-6f1c3\">C\u2082<br>(final)<\/label>\n        <input class=\"eco-tool__input\" id=\"eco-dil-c2-6f1c3\" type=\"number\" step=\"any\" placeholder=\"e.g., 2\" \/>\n        <div class=\"eco-tool__hint\">Same unit as C\u2081.<\/div>\n      <\/div>\n\n      <div class=\"eco-tool__field\">\n        <label class=\"eco-tool__label\" for=\"eco-dil-v2-6f1c3\">V\u2082<br>(final)<\/label>\n        <input class=\"eco-tool__input\" id=\"eco-dil-v2-6f1c3\" type=\"number\" step=\"any\" placeholder=\"e.g., 25\" \/>\n        <div class=\"eco-tool__hint\">Same unit as V\u2081.<\/div>\n      <\/div>\n\n      <div class=\"eco-tool__field\">\n        <label class=\"eco-tool__label\">Tip<\/label>\n        <div class=\"eco-tool__noteBox\">\n          Dilution factor = C\u2081 \/ C\u2082 = V\u2082 \/ V\u2081 (when C\u2081 and C\u2082 are known).\n        <\/div>\n        <div class=\"eco-tool__hint\">Make sure you\u2019re not mixing units.<\/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-dil-calc-6f1c3\">Calculate<\/button>\n      <button type=\"button\" class=\"wp-element-button eco-tool__btn eco-tool__btn--ghost\" id=\"eco-dil-reset-6f1c3\">Reset<\/button>\n      <div class=\"eco-tool__error\" id=\"eco-dil-error-6f1c3\" aria-live=\"polite\"><\/div>\n    <\/div>\n  <\/form>\n\n  <div class=\"eco-tool__result\" id=\"eco-dil-result-6f1c3\" 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\">Calculated value<\/div>\n        <div class=\"eco-tool__metric-value\" id=\"eco-dil-out-6f1c3\">\u2014<\/div>\n        <div class=\"eco-tool__metric-sub\" id=\"eco-dil-eq-6f1c3\">\u2014<\/div>\n      <\/div>\n\n      <div class=\"eco-tool__card\">\n        <div class=\"eco-tool__metric-label\">Dilution factor<\/div>\n        <div class=\"eco-tool__metric-value\" id=\"eco-dil-factor-6f1c3\">\u2014<\/div>\n        <div class=\"eco-tool__metric-sub\">If C\u2081 and C\u2082 are provided<\/div>\n      <\/div>\n    <\/div>\n\n    <p class=\"eco-tool__note\">\n      Formula: C\u2081V\u2081 = C\u2082V\u2082.\n    <\/p>\n  <\/div>\n\n  <details class=\"eco-tool__details\">\n    <summary class=\"eco-tool__summary\">How we calculate<\/summary>\n    <div class=\"eco-tool__details-body\">\n      <p class=\"eco-tool__text\">\n        Solve for the unknown by rearranging: C\u2081 = (C\u2082V\u2082)\/V\u2081, V\u2081 = (C\u2082V\u2082)\/C\u2081, C\u2082 = (C\u2081V\u2081)\/V\u2082, V\u2082 = (C\u2081V\u2081)\/C\u2082.\n      <\/p>\n    <\/div>\n  <\/details>\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 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function setError(msg){ errEl.textContent = msg || \"\"; }\n  function n(x){\n    const s=(x??\"\").toString().trim();\n    if(s===\"\") return null;\n    const v=Number(s);\n    return Number.isFinite(v) ? v : null;\n  }\n  function fmt(v){\n    if(!Number.isFinite(v)) return \"\u2014\";\n    const a=Math.abs(v);\n    if(a===0) return \"0\";\n    if(a<0.001 || a>=1e6) return v.toExponential(3);\n    return v.toLocaleString(undefined,{maximumFractionDigits:6});\n  }\n\n  function setDisabled(){\n    const u = unknownEl.value;\n    const map = { c1:c1El, v1:v1El, c2:c2El, v2:v2El };\n    Object.values(map).forEach(inp => { inp.disabled = false; inp.style.opacity = \"1\"; });\n    map[u].disabled = true;\n    map[u].style.opacity = \".7\";\n    \/\/ don't clear user input automatically \u2014 people may switch\n  }\n\n  function calculate(){\n    setError(\"\");\n\n    const u = unknownEl.value;\n    const C1=n(c1El.value), V1=n(v1El.value), C2=n(c2El.value), V2=n(v2El.value);\n\n    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} else { \/\/ c1\n        if(V1===0) throw new Error(\"V\u2081 cannot be 0.\");\n        result = (C2*V2)\/V1;\n        eq = `C\u2081 = (C\u2082\u00d7V\u2082) \/ V\u2081 = (${fmt(C2)}\u00d7${fmt(V2)}) \/ ${fmt(V1)}`;\n      }\n    } catch(e){\n      setError(e.message || \"Invalid input.\");\n      resEl.hidden = true;\n      return;\n    }\n\n    if(!Number.isFinite(result) || result < 0){\n      setError(\"Result is not valid. Check your inputs.\");\n      resEl.hidden = true;\n      return;\n    }\n\n    outEl.textContent = fmt(result);\n    eqEl.textContent = eq;\n\n    \/\/ Dilution factor if C1 and C2 provided and C2 != 0\n    if(C1!==null &#038;&#038; C2!==null &#038;&#038; C2!==0){\n      factorEl.textContent = fmt(C1\/C2) + \"\u00d7\";\n    } else {\n      factorEl.textContent = \"\u2014\";\n    }\n\n    resEl.hidden = false;\n  }\n\n  function reset(){\n    unknownEl.value = \"v2\";\n    c1El.value = \"\";\n    v1El.value = \"\";\n    c2El.value = \"\";\n    v2El.value = \"\";\n    setError(\"\");\n    resEl.hidden = true;\n    setDisabled();\n  }\n\n  unknownEl.addEventListener(\"change\", setDisabled);\n  calcBtn.addEventListener(\"click\", calculate);\n  resetBtn.addEventListener(\"click\", reset);\n\n  setDisabled();\n})();\n<\/script>\n\n","protected":false},"excerpt":{"rendered":"<p>Dilution Calculator (C\u2081V\u2081 = C\u2082V\u2082) Enter three values to calculate the fourth. Use consistent concentration units (e.g., M, mg\/mL). Solve for(unknown) C\u2081 (initial concentration)V\u2081 (initial volume)C\u2082 (final concentration)V\u2082 (final volume)&hellip;<\/p>\n","protected":false},"author":2,"featured_media":0,"parent":2354,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_sitemap_exclude":false,"_sitemap_priority":"","_sitemap_frequency":"","footnotes":""},"_links":{"self":[{"href":"https:\/\/science-x.net\/index.php?rest_route=\/wp\/v2\/pages\/2399"}],"collection":[{"href":"https:\/\/science-x.net\/index.php?rest_route=\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/science-x.net\/index.php?rest_route=\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/science-x.net\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/science-x.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=2399"}],"version-history":[{"count":2,"href":"https:\/\/science-x.net\/index.php?rest_route=\/wp\/v2\/pages\/2399\/revisions"}],"predecessor-version":[{"id":2401,"href":"https:\/\/science-x.net\/index.php?rest_route=\/wp\/v2\/pages\/2399\/revisions\/2401"}],"up":[{"embeddable":true,"href":"https:\/\/science-x.net\/index.php?rest_route=\/wp\/v2\/pages\/2354"}],"wp:attachment":[{"href":"https:\/\/science-x.net\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2399"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}