{"id":100203,"date":"2026-02-15T20:27:14","date_gmt":"2026-02-15T20:27:14","guid":{"rendered":"https:\/\/vibromera.eu\/?post_type=calculator&#038;p=100203"},"modified":"2026-02-15T20:27:14","modified_gmt":"2026-02-15T20:27:14","slug":"pump-head-power","status":"publish","type":"calculator","link":"https:\/\/vibromera.eu\/bn\/calculators\/pump-head-power\/","title":{"rendered":"\u09aa\u09be\u09ae\u09cd\u09aa \u09b9\u09c7\u09a1 &#038; \u09b6\u0995\u09cd\u09a4\u09bf \u0995\u09cd\u09af\u09be\u09b2\u0995\u09c1\u09b2\u09c7\u099f\u09b0 | \u09ac\u09bf\u09a8\u09be\u09ae\u09c2\u09b2\u09cd\u09af\u09c7 \u0985\u09a8\u09b2\u09be\u0987\u09a8 \u099f\u09c1\u09b2"},"content":{"rendered":"\n<script type=\"application\/ld+json\">{\"@context\":\"https:\/\/schema.org\",\"@type\":\"WebApplication\",\"name\":\"Pump Head & Power Calculator\",\"description\":\"Free online pump head & power calculator.\",\"url\":\"https:\/\/vibromera.eu\/calculators\/pump-head-power\/\",\"applicationCategory\":\"Engineering Calculator\",\"operatingSystem\":\"Any\",\"offers\":{\"@type\":\"Offer\",\"price\":\"0\",\"priceCurrency\":\"EUR\"},\"creator\":{\"@type\":\"Organization\",\"name\":\"Vibromera\",\"url\":\"https:\/\/vibromera.eu\/\"},\"datePublished\":\"2024-01-01\",\"dateModified\":\"2025-06-15\",\"inLanguage\":\"en\",\"isAccessibleForFree\":true}<\/script>\n\n<script type=\"application\/ld+json\">{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"How do I calculate pump power?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"P=\u03c1gQH\/\u03b7. \u03c1=density, g=9.81, Q=flow(m\u00b3\/s), H=head(m), \u03b7=efficiency.\"}},{\"@type\":\"Question\",\"name\":\"What is typical pump efficiency?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Small: 50-65%. Medium centrifugal: 70-80%. Large: 80-90%.\"}},{\"@type\":\"Question\",\"name\":\"Hydraulic vs shaft power?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Hydraulic=useful fluid power. Shaft=hydraulic\/efficiency. Motor\u2265shaft power.\"}},{\"@type\":\"Question\",\"name\":\"How to convert head to pressure?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"P(bar)=\u03c1gH\/100000. Water: 10m\u22481bar.\"}},{\"@type\":\"Question\",\"name\":\"What is NPSH?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Net Positive Suction Head. Insufficient NPSHa causes cavitation.\"}}]}<\/script>\n\n<script type=\"application\/ld+json\">{\"@context\":\"https:\/\/schema.org\",\"@type\":\"BreadcrumbList\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/vibromera.eu\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Calculators\",\"item\":\"https:\/\/vibromera.eu\/calculators\/\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Pump Head & Power Calculator\",\"item\":\"https:\/\/vibromera.eu\/calculators\/pump-head-power\/\"}]}<\/script>\n\n<link rel=\"preconnect\" href=\"https:\/\/fonts.googleapis.com\">\n\n<link rel=\"preconnect\" href=\"https:\/\/fonts.gstatic.com\" crossorigin>\n\n<link href=\"https:\/\/fonts.googleapis.com\/css2?family=DM+Sans:ital,opsz,wght@0,9..40,300;0,9..40,400;0,9..40,500;0,9..40,600;0,9..40,700;1,9..40,400&#038;family=JetBrains+Mono:wght@400;500;600&#038;family=Fraunces:opsz,wght@9..144,700;9..144,800&#038;display=swap\" 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0;background:var(--vc-surface);border:1px solid var(--vc-border-light);border-radius:var(--vc-radius);padding:16px;overflow:hidden}.vc-viz svg{width:100%;height:auto;display:block}.vc-viz-title{font-family:var(--vc-mono);font-size:11px;font-weight:500;letter-spacing:0.1em;text-transform:uppercase;color:var(--vc-ink-muted);margin-bottom:12px}<\/style>\n\n<div class=\"vc-calculator\">\n<header class=\"vc-header\">\n    <p class=\"vc-header-eyebrow\">Free Engineering Tool \u2014 #155<\/p>\n    <h1 class=\"vc-header-title\">Pump Head &#038; Power Calculator<\/h1>\n    <p class=\"vc-header-subtitle\">Calculate pump power from flow rate, head, density, and efficiency. P=\u03c1gQH\/\u03b7.<\/p>\n    <div class=\"vc-badges\"><span class=\"vc-badge\">P = \u03c1gQH\/\u03b7<\/span><span class=\"vc-badge\">kW &#038; hp<\/span><\/div>\n<\/header>\n<div class=\"vc-card\">\n    <form class=\"vc-form\" id=\"vc-form\" autocomplete=\"off\">\n        <div class=\"vc-form-grid\">\n            <div class=\"vc-field\"><label class=\"vc-label\" for=\"vc-flow\">Flow Rate (Q) <span class=\"vc-label-hint\">(m\u00b3\/h)<\/span><\/label><input class=\"vc-input\" type=\"number\" id=\"vc-flow\" inputmode=\"decimal\" step=\"any\" value=\"50\"><\/div>\n            <div class=\"vc-field\"><label class=\"vc-label\" for=\"vc-head\">Total Head (H) <span class=\"vc-label-hint\">(m)<\/span><\/label><input class=\"vc-input\" type=\"number\" id=\"vc-head\" inputmode=\"decimal\" step=\"any\" value=\"30\"><\/div>\n            <div class=\"vc-field\"><label class=\"vc-label\" for=\"vc-density\">Fluid Density (\u03c1) <span class=\"vc-label-hint\">(kg\/m\u00b3)<\/span><\/label><input class=\"vc-input\" type=\"number\" id=\"vc-density\" inputmode=\"decimal\" step=\"any\" value=\"998\"><\/div>\n            <div class=\"vc-field\"><label class=\"vc-label\" for=\"vc-eff\">Pump Efficiency (\u03b7) <span class=\"vc-label-hint\">(0-1)<\/span><\/label><input class=\"vc-input\" type=\"number\" id=\"vc-eff\" inputmode=\"decimal\" step=\"any\" value=\"0.75\"><\/div>\n        <\/div>\n        <div class=\"vc-presets\">\n            <div class=\"vc-presets-label\">Quick presets<\/div>\n            <button type=\"button\" class=\"vc-preset-btn\" data-flow=\"10\" data-head=\"20\" data-density=\"998\" data-eff=\"0.65\">Small 10 m\u00b3\/h<\/button>\n            <button type=\"button\" class=\"vc-preset-btn\" data-flow=\"50\" data-head=\"30\" data-density=\"998\" data-eff=\"0.75\">Process 50 m\u00b3\/h<\/button>\n            <button type=\"button\" class=\"vc-preset-btn\" data-flow=\"200\" data-head=\"50\" data-density=\"998\" data-eff=\"0.80\">Large 200 m\u00b3\/h<\/button>\n        <\/div>\n    <\/form>\n    <div class=\"vc-results\" id=\"vc-results\">\n        <div class=\"vc-results-head\"><h2 class=\"vc-results-title\">Results<\/h2><button type=\"button\" class=\"vc-copy-btn\" id=\"vc-copy-btn\"><svg width=\"14\" height=\"14\" viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\"><rect x=\"9\" y=\"9\" width=\"13\" height=\"13\" rx=\"2\"\/><path d=\"M5 15H4a2 2 0 01-2-2V4a2 2 0 012-2h9a2 2 0 012 2v1\"\/><\/svg> Copy<\/button><\/div>\n        <div class=\"vc-result-grid\">\n            <div class=\"vc-rcard vc-rcard-primary\"><div class=\"vc-rcard-label\">Shaft Power<\/div><div class=\"vc-rcard-value\" id=\"vc-r-power\">\u2014<\/div><\/div>\n            <div class=\"vc-rcard\"><div class=\"vc-rcard-label\">Power (hp)<\/div><div class=\"vc-rcard-value\" id=\"vc-r-hp\">\u2014<\/div><\/div>\n            <div class=\"vc-rcard\"><div class=\"vc-rcard-label\">Hydraulic Power<\/div><div class=\"vc-rcard-value\" id=\"vc-r-hyd\">\u2014<\/div><\/div>\n            <div class=\"vc-rcard\"><div class=\"vc-rcard-label\">Flow Rate<\/div><div class=\"vc-rcard-value\" id=\"vc-r-flow\">\u2014<\/div><\/div>\n        <\/div>\n        <div class=\"vc-viz\" id=\"vc-viz\"><div class=\"vc-viz-title\">Pump System Diagram<\/div><div id=\"vc-viz-svg\"><\/div><\/div>\n    <\/div>\n<\/div>\n<div class=\"vc-section vc-open\"><button type=\"button\" class=\"vc-section-toggle\" aria-expanded=\"true\"><span class=\"vc-section-toggle-text\"><span class=\"vc-section-icon\">\ud83d\udcd8<\/span><span class=\"vc-section-title\">Theory &amp; Formulas<\/span><\/span><svg class=\"vc-section-chevron\" viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\"><path d=\"M6 9l6 6 6-6\"\/><\/svg><\/button>\n    <div class=\"vc-section-body\"><div class=\"vc-section-inner vc-theory\"><h3>Formula<\/h3><div class=\"vc-formula-box\" id=\"vc-katex-1\"><\/div><\/div><\/div><\/div>\n<div class=\"vc-section\"><button type=\"button\" class=\"vc-section-toggle\" aria-expanded=\"false\"><span class=\"vc-section-toggle-text\"><span class=\"vc-section-icon\">\ud83d\udd17<\/span><span class=\"vc-section-title\">Related Calculators<\/span><\/span><svg class=\"vc-section-chevron\" viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\"><path d=\"M6 9l6 6 6-6\"\/><\/svg><\/button>\n    <div class=\"vc-section-body\"><div class=\"vc-section-inner\"><div class=\"vc-related\"><a class=\"vc-related-link\" href=\"\/calculators\/npsh-calculator\/\">NPSH<\/a>\n                <a class=\"vc-related-link\" href=\"\/calculators\/specific-speed-calculator\/\">Specific Speed<\/a>\n                <a class=\"vc-related-link\" href=\"\/calculators\/fan-shaft-power\/\">Fan Power<\/a><\/div><\/div><\/div><\/div>\n<div class=\"vc-section\"><button type=\"button\" class=\"vc-section-toggle\" aria-expanded=\"false\"><span class=\"vc-section-toggle-text\"><span class=\"vc-section-icon\">\u2753<\/span><span class=\"vc-section-title\">Frequently Asked Questions<\/span><\/span><svg class=\"vc-section-chevron\" viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\"><path d=\"M6 9l6 6 6-6\"\/><\/svg><\/button>\n    <div class=\"vc-section-body\"><div class=\"vc-section-inner\"><div class=\"vc-faq-list\" id=\"vc-faq-list\"><\/div><\/div><\/div><\/div>\n<div class=\"vc-promo\"><div class=\"vc-promo-text\"><strong>Vibromera \u2014 Portable Balancing &amp; Vibration Analysis<\/strong><br>Professional instruments. Used in 50+ countries.<\/div><a class=\"vc-promo-link\" href=\"https:\/\/vibromera.eu\/\" target=\"_blank\" rel=\"noopener\">Learn More<\/a><\/div>\n<footer class=\"vc-footer\"><p>&copy; 2024&ndash;2025 <a href=\"https:\/\/vibromera.eu\/\">Vibromera<\/a> &mdash; Engineering Calculators<\/p><p style=\"font-size:12px;margin-top:4px\">Pump Head &#038; Power Calculator. Last updated: June 2025<\/p><div class=\"vc-footer-links\"><a href=\"\/calculators\/engineering-calculators\/\">All Calculators<\/a><a href=\"https:\/\/vibromera.eu\/contacts\/\">Contact<\/a><\/div><\/footer>\n<\/div>\n<script src=\"https:\/\/cdn.jsdelivr.net\/npm\/katex@0.16.11\/dist\/katex.min.js\"><\/script>\n<script>\n(function(){\n    'use strict';\n    function $(id){return document.getElementById(id)}\n    function fm(n,d){if(isNaN(n)||!isFinite(n))return '\\u2014';return n.toFixed(d===undefined?2:d).replace(\/(\\.\\d*?)0+$\/,'$1').replace(\/\\.$\/,'')}\n    function pf(id){return parseFloat($(id).value)}\n    function ok(){for(var i=0;i<arguments.length;i++){var v=arguments[i];if(!v||v<=0)return false}return true}\n    function R(id,val,unit){$(id).innerHTML=val+(unit?' <span class=\"vc-rcard-unit\">'+unit+'<\/span>':'')}\n    function show(){$('vc-results').classList.add('vc-visible')}\n    function hide(){$('vc-results').classList.remove('vc-visible')}\n    function 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