{"id":100135,"date":"2026-02-15T20:19:37","date_gmt":"2026-02-15T20:19:37","guid":{"rendered":"https:\/\/vibromera.eu\/?post_type=calculator&#038;p=100135"},"modified":"2026-04-05T15:42:02","modified_gmt":"2026-04-05T15:42:02","slug":"hydraulic-wrench-torque","status":"publish","type":"calculator","link":"https:\/\/vibromera.eu\/nb\/calculators\/hydraulic-wrench-torque\/","title":{"rendered":"Hydraulisk skiften\u00f8kkel momentkalkulator | Gratis online verkt\u00f8y"},"content":{"rendered":"\n<script type=\"application\/ld+json\">{\"@context\":\"https:\/\/schema.org\",\"@type\":\"WebApplication\",\"name\":\"Hydraulic Wrench Torque Calculator\",\"description\":\"Convert hydraulic wrench pressure to output torque. T = P \u00d7 A \u00d7 r.\",\"url\":\"https:\/\/vibromera.eu\/calculators\/hydraulic-wrench-torque\/\",\"applicationCategory\":\"Engineering Calculator\",\"operatingSystem\":\"Any\",\"offers\":{\"@type\":\"Offer\",\"price\":\"0\",\"priceCurrency\":\"EUR\"},\"creator\":{\"@type\":\"Organization\",\"name\":\"Vibromera\",\"url\":\"https:\/\/vibromera.eu\/\"},\"datePublished\":\"2025-01-01\",\"dateModified\":\"2026-02-15\",\"inLanguage\":\"en\",\"isAccessibleForFree\":true}<\/script>\n\n<script type=\"application\/ld+json\">{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[\n{\"@type\":\"Question\",\"name\":\"How does a hydraulic torque wrench work?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"A hydraulic torque wrench uses pressurized hydraulic fluid to push a piston, which drives a ratchet mechanism through a lever arm. The output torque is T = P \u00d7 A \u00d7 r, where P is hydraulic pressure, A is piston area, and r is the effective arm length.\"}},\n{\"@type\":\"Question\",\"name\":\"How do I convert bar pressure to torque?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"T (N\u00b7m) = P (bar) \u00d7 0.1 (to MPa) \u00d7 A (mm\u00b2) \u00d7 r (mm) \/ 1000. The conversion factor 0.1 converts bar to MPa (N\/mm\u00b2). The \/1000 converts N\u00b7mm to N\u00b7m.\"}},\n{\"@type\":\"Question\",\"name\":\"What is the accuracy of hydraulic torque wrenches?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Hydraulic torque wrenches typically achieve \u00b13% accuracy when properly calibrated, which is significantly better than manual torque wrenches (\u00b110-25%). This makes them preferred for critical bolted joints.\"}},\n{\"@type\":\"Question\",\"name\":\"What pressure range do hydraulic wrenches operate at?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most hydraulic torque wrenches operate at 350\u2013700 bar (5,000\u201310,000 psi). Low-profile (cassette) type wrenches typically use 700 bar maximum. Square drive types may operate at lower pressures with larger pistons.\"}},\n{\"@type\":\"Question\",\"name\":\"When should I use a hydraulic wrench instead of a manual torque wrench?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Use hydraulic wrenches for: (1) bolts M24 and larger where manual torque is impractical, (2) critical joints requiring \u00b13% accuracy, (3) multiple bolts needing consistent torque, (4) confined spaces (low-profile type), (5) high-torque flange applications.\"}}\n]}<\/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\":\"Hydraulic Wrench Torque\",\"item\":\"https:\/\/vibromera.eu\/calculators\/hydraulic-wrench-torque\/\"}]}<\/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\" rel=\"stylesheet\">\n\n<link rel=\"stylesheet\" 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.15s}.vc-related-link:hover{border-color:var(--vc-accent);color:var(--vc-accent);background:var(--vc-accent-light)}\n.vc-promo{margin-top:24px;padding:20px;background:linear-gradient(135deg,var(--vc-accent-light),var(--vc-surface));border:1px solid var(--vc-border);border-radius:var(--vc-radius-lg);display:flex;align-items:center;gap:16px}.vc-promo-text{flex:1;font-size:14px;color:var(--vc-ink-secondary)}.vc-promo-text strong{color:var(--vc-ink)}.vc-promo-link{padding:8px 20px;font-size:13px;font-weight:700;color:#fff;background:var(--vc-accent);border-radius:var(--vc-radius);text-decoration:none;white-space:nowrap;transition:background .15s}.vc-promo-link:hover{background:var(--vc-accent-hover)}\n.vc-footer{text-align:center;padding:32px 16px;font-size:13px;color:var(--vc-ink-muted)}.vc-footer a{color:var(--vc-accent);text-decoration:none}.vc-footer a:hover{text-decoration:underline}.vc-footer-links{margin-top:8px;font-size:12px}.vc-footer-links a{margin:0 8px}\n@media print{.vc-section-body{max-height:none!important}.vc-faq-a{max-height:none!important}.vc-results{max-height:none!important;padding:24px!important}.vc-copy-btn,.vc-section-chevron,.vc-faq-chevron,.vc-presets,.vc-promo{display:none!important}}<\/style>\n\n<div class=\"vc-calculator\" id=\"vc-hyd-torque\">\n<header class=\"vc-header\">\n    <p class=\"vc-header-eyebrow\">Free Engineering Tool<\/p>\n    <h1 class=\"vc-header-title\">Hydraulic Wrench Torque Calculator<\/h1>\n    <p class=\"vc-header-subtitle\">Convert hydraulic pressure to output torque for hydraulic torque wrenches. Enter pressure, piston area, and effective arm length.<\/p>\n    <div class=\"vc-badges\"><span class=\"vc-badge\">T = P \u00d7 A \u00d7 r<\/span><span class=\"vc-badge\">bar \u2192 N\u00b7m<\/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-pressure\">Hydraulic Pressure <span class=\"vc-label-hint\">(bar)<\/span><\/label><input class=\"vc-input\" type=\"number\" id=\"vc-pressure\" step=\"any\" min=\"1\" value=\"350\" placeholder=\"e.g. 350\"><\/div>\n            <div class=\"vc-field\"><label class=\"vc-label\" for=\"vc-area\">Piston Area <span class=\"vc-label-hint\">(cm\u00b2)<\/span><\/label><input class=\"vc-input\" type=\"number\" id=\"vc-area\" step=\"any\" min=\"0.1\" value=\"20\" placeholder=\"e.g. 20\"><\/div>\n            <div class=\"vc-field\"><label class=\"vc-label\" for=\"vc-arm\">Effective Arm Length <span class=\"vc-label-hint\">(mm)<\/span><\/label><input class=\"vc-input\" type=\"number\" id=\"vc-arm\" step=\"any\" min=\"1\" value=\"150\" placeholder=\"e.g. 150\"><\/div>\n            <div class=\"vc-field\"><label class=\"vc-label\" for=\"vc-eff\">Mechanical Efficiency <span class=\"vc-label-hint\">(%)<\/span><\/label><input class=\"vc-input\" type=\"number\" id=\"vc-eff\" step=\"1\" min=\"50\" max=\"100\" value=\"95\" placeholder=\"e.g. 95\"><\/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-p=\"350\" data-a=\"15\" data-r=\"120\" data-e=\"95\">Small wrench 350 bar<\/button>\n            <button type=\"button\" class=\"vc-preset-btn\" data-p=\"700\" data-a=\"20\" data-r=\"150\" data-e=\"95\">Medium wrench 700 bar<\/button>\n            <button type=\"button\" class=\"vc-preset-btn\" data-p=\"700\" data-a=\"40\" data-r=\"200\" data-e=\"93\">Large wrench 700 bar<\/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\">Output Torque<\/div><div class=\"vc-rcard-value\" id=\"vc-r-torque\">\u2014<\/div><\/div>\n            <div class=\"vc-rcard\"><div class=\"vc-rcard-label\">Piston Force<\/div><div class=\"vc-rcard-value\" id=\"vc-r-force\">\u2014<\/div><\/div>\n            <div class=\"vc-rcard\"><div class=\"vc-rcard-label\">Pressure (MPa)<\/div><div class=\"vc-rcard-value\" id=\"vc-r-mpa\">\u2014<\/div><\/div>\n            <div class=\"vc-rcard\"><div class=\"vc-rcard-label\">Torque (ft\u00b7lbf)<\/div><div class=\"vc-rcard-value\" id=\"vc-r-ftlb\">\u2014<\/div><\/div>\n        <\/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<\/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\">\n        <h3>Torque from Hydraulic Pressure<\/h3>\n        <div class=\"vc-formula-box\" id=\"vc-katex-1\"><\/div>\n        <p>Where P is pressure in bar (1 bar = 0.1 MPa = 0.1 N\/mm\u00b2), A is piston area in cm\u00b2 (1 cm\u00b2 = 100 mm\u00b2), and r is effective arm length in mm. \u03b7 is mechanical efficiency (typically 93\u201397%).<\/p>\n    <\/div><\/div>\n<\/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<\/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\/stud-bolt-torque\/\">Stud Bolt Torque<\/a><a class=\"vc-related-link\" href=\"\/calculators\/bolt-preload-calculator\/\">Bolt Preload<\/a><a class=\"vc-related-link\" href=\"\/calculators\/flange-bolt-calculator\/\">Flange Bolt Calculator<\/a><\/div><\/div><\/div>\n<\/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\">FAQ<\/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>\n<\/div>\n<div class=\"vc-promo\"><div class=\"vc-promo-text\"><strong>Vibromera<\/strong> \u2014 Professional field instruments.<\/div><a class=\"vc-promo-link\" href=\"https:\/\/vibromera.eu\/\" target=\"_blank\" rel=\"noopener\">Learn More<\/a><\/div>\n<footer class=\"vc-footer\"><p>\u00a9 2024\u20132026 <a href=\"https:\/\/vibromera.eu\/\">Vibromera<\/a><\/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 $(id){return document.getElementById(id)}\n    function fmt(n,d){if(isNaN(n)||!isFinite(n))return '\u2014';return n.toFixed(d===undefined?2:d).replace(\/(\\.\\d*?)0+$\/,'$1').replace(\/\\.$\/,'')}\n    function calculate(){\n        var P=parseFloat($('vc-pressure').value); \/\/ bar\n        var A=parseFloat($('vc-area').value); \/\/ cm\u00b2\n        var r=parseFloat($('vc-arm').value); \/\/ mm\n        var eff=parseFloat($('vc-eff').value)\/100;\n        if(!P||!A||!r||!eff){$('vc-results').classList.remove('vc-visible');return}\n        \/\/ F = P(bar)*0.1(MPa)*A(cm\u00b2)*100(mm\u00b2) = P*A*10 (N)\n        var F=P*A*10; \/\/ N\n        var T=F*r\/1000*eff; \/\/ N\u00b7m\n        var Tftlb=T*0.7376;\n        $('vc-r-torque').innerHTML=fmt(T,0)+' <span class=\"vc-rcard-unit\">N\u00b7m<\/span>';\n        $('vc-r-force').innerHTML=fmt(F\/1000,1)+' <span class=\"vc-rcard-unit\">kN<\/span>';\n        $('vc-r-mpa').innerHTML=fmt(P*0.1,1)+' <span class=\"vc-rcard-unit\">MPa<\/span>';\n        $('vc-r-ftlb').innerHTML=fmt(Tftlb,0)+' <span class=\"vc-rcard-unit\">ft\u00b7lbf<\/span>';\n        $('vc-results').classList.add('vc-visible');\n    }\n    document.querySelectorAll('.vc-preset-btn').forEach(function(b){b.addEventListener('click',function(e){e.preventDefault();$('vc-pressure').value=this.getAttribute('data-p');$('vc-area').value=this.getAttribute('data-a');$('vc-arm').value=this.getAttribute('data-r');$('vc-eff').value=this.getAttribute('data-e');calculate()})});\n    $('vc-form').addEventListener('input',calculate);$('vc-form').addEventListener('change',calculate);\n    $('vc-copy-btn').addEventListener('click',function(){var text='Hydraulic Wrench Torque\\nPressure: '+$('vc-pressure').value+' bar\\nTorque: '+$('vc-r-torque').textContent+'\\nForce: '+$('vc-r-force').textContent+'\\nvibromera.eu';if(navigator.clipboard){navigator.clipboard.writeText(text).then(function(){var b=$('vc-copy-btn');b.classList.add('vc-copied');b.innerHTML='Copied!';setTimeout(function(){b.classList.remove('vc-copied');b.innerHTML='<svg width=\"14\" height=\"14\" viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\"><rect x=\"9\" y=\"9\" width=\"13\" height=\"13\" rx=\"2\"\/><path d=\"M5 15H4a2 2 0 01-2-2V4a2 2 0 012-2h9a2 2 0 012 2v1\"\/><\/svg> Copy'},2000)})}});\n    document.querySelectorAll('.vc-section-toggle').forEach(function(btn){btn.addEventListener('click',function(){var s=this.closest('.vc-section');s.classList.toggle('vc-open');this.setAttribute('aria-expanded',s.classList.contains('vc-open'))})});\n    var faqData=[{q:'How does a hydraulic torque wrench work?',a:'<p>Pressurized fluid pushes a piston through a lever arm, creating torque: T = P \u00d7 A \u00d7 r \u00d7 \u03b7.<\/p>'},{q:'How do I convert bar to torque?',a:'<p>T(N\u00b7m) = P(bar) \u00d7 0.1 \u00d7 A(mm\u00b2) \u00d7 r(mm) \/ 1000. Or T = P(bar) \u00d7 A(cm\u00b2) \u00d7 r(mm) \/ 100.<\/p>'},{q:'What is the accuracy of hydraulic wrenches?',a:'<p>Typically \u00b13% when calibrated, much better than manual torque wrenches (\u00b110\u201325%).<\/p>'},{q:'What pressure range do they operate at?',a:'<p>Most operate at 350\u2013700 bar (5,000\u201310,000 psi). Low-profile types use 700 bar max.<\/p>'},{q:'When to use hydraulic vs manual wrench?',a:'<p>Use hydraulic for: M24+ bolts, critical joints needing \u00b13%, multiple bolts, confined spaces, high-torque flanges.<\/p>'}];\n    var fl=$('vc-faq-list');faqData.forEach(function(f){fl.innerHTML+='<div class=\"vc-faq-item\"><button type=\"button\" class=\"vc-faq-q\"><span>'+f.q+'<\/span><svg class=\"vc-faq-chevron\" viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\"><path d=\"M6 9l6 6 6-6\"\/><\/svg><\/button><div class=\"vc-faq-a\"><div class=\"vc-faq-a-inner\">'+f.a+'<\/div><\/div><\/div>'});\n    fl.addEventListener('click',function(e){var b=e.target.closest('.vc-faq-q');if(b)b.closest('.vc-faq-item').classList.toggle('vc-open')});\n    function renderFormulas(){try{katex.render('T = P \\\\times A \\\\times r \\\\times \\\\eta \\\\quad [\\\\text{N\u00b7m}]',$('vc-katex-1'),{displayMode:true,throwOnError:false})}catch(e){}}\n    function init(){renderFormulas();calculate()}\n    if(document.readyState==='loading'){document.addEventListener('DOMContentLoaded',init)}else{init()}\n})();\n<\/script>\n","protected":false},"excerpt":{"rendered":"<p>Gratis online kalkulator for \u00e5 konvertere hydraulisk skiften\u00f8kkeltrykk til dreiemoment. Skriv inn trykk (bar), stempelareal og armlengde for \u00e5 beregne utg\u00e5ende dreiemoment T = P \u00d7 A \u00d7 r.<\/p>","protected":false},"featured_media":0,"template":"","meta":{"ai_generated_summary":"","footnotes":""},"categories":[],"tags":[],"class_list":["post-100135","calculator","type-calculator","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/vibromera.eu\/nb\/wp-json\/wp\/v2\/calculator\/100135","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/vibromera.eu\/nb\/wp-json\/wp\/v2\/calculator"}],"about":[{"href":"https:\/\/vibromera.eu\/nb\/wp-json\/wp\/v2\/types\/calculator"}],"version-history":[{"count":2,"href":"https:\/\/vibromera.eu\/nb\/wp-json\/wp\/v2\/calculator\/100135\/revisions"}],"predecessor-version":[{"id":100948,"href":"https:\/\/vibromera.eu\/nb\/wp-json\/wp\/v2\/calculator\/100135\/revisions\/100948"}],"wp:attachment":[{"href":"https:\/\/vibromera.eu\/nb\/wp-json\/wp\/v2\/media?parent=100135"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vibromera.eu\/nb\/wp-json\/wp\/v2\/categories?post=100135"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vibromera.eu\/nb\/wp-json\/wp\/v2\/tags?post=100135"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}