Torque, power and rotation speed calculator<\/title>\n\n <link rel=\"preconnect\" href=\"https:\/\/fonts.googleapis.com\" \/>\n <link rel=\"preconnect\" href=\"https:\/\/fonts.gstatic.com\" crossorigin \/>\n <link href=\"https:\/\/fonts.googleapis.com\/css2?family=Inter:wght@400;500;600;700&display=swap\" rel=\"stylesheet\" \/>\n\n \n <link rel=\"stylesheet\" href=\"https:\/\/cdn.jsdelivr.net\/npm\/katex@0.16.9\/dist\/katex.min.css\" crossorigin=\"anonymous\" \/>\n <script defer src=\"https:\/\/cdn.jsdelivr.net\/npm\/katex@0.16.9\/dist\/katex.min.js\" crossorigin=\"anonymous\"><\/script>\n\n <style>\n *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }\n\n :root {\n --green: #1a6b3c;\n --green-dark: #0f4a28;\n --green-mid: #2d8a55;\n --green-light: #e8f4ed;\n --green-xlight: #f2faf5;\n --amber: #b45309;\n --amber-light: #fef3c7;\n --red: #b91c1c;\n --bg: #ffffff;\n --bg-soft: #f8f9fa;\n --bg-muted: #f1f3f5;\n --border: #e5e7eb;\n --border-mid: #d1d5db;\n --text-primary: #111827;\n --text-secondary: #4b5563;\n --text-muted: #9ca3af;\n --gray-650: #4b5563;\n --radius-sm: 6px;\n --radius-md: 8px;\n }\n\n body { min-height: 100vh; padding: 40px 28px 64px;\n font-family: 'Inter', sans-serif;\n font-size: 14px;\n letter-spacing: 0.02em;\n color: var(--text-primary);}\n\n .article__title {\n font-size: 22px;\n font-weight: 700;\n color: var(--text-primary);\n line-height: 1.3;\n margin-bottom: 8px;\n }\n\n .article__subtitle {\n font-size: 14px;\n color: var(--text-secondary);\n line-height: 1.75;\n margin-bottom: 24px;\n }\n\n \/* \u2500\u2500 Infobox \u2500\u2500 *\/\n .infobox {\n display: flex;\n flex-direction: column;\n gap: 4px;\n padding: 12px 14px;\n background: var(--green-xlight);\n border: 1px solid var(--green-light);\n border-radius: var(--radius-sm);\n color: var(--green-dark);\n }\n .infobox__title {\n display: flex;\n align-items: center;\n gap: 6px;\n font-size: 12.5px;\n font-weight: 600;\n }\n .infobox__text { font-size: 12px; line-height: 1.6; }\n\n \/* \u2500\u2500 Shell \u2500\u2500 *\/\n .ci-host { display: flex; flex-direction: column; gap: 14px; margin-top: 4px; }\n\n .ci-card {\n background: var(--bg);\n border: 1px solid var(--border);\n border-radius: var(--radius-md);\n box-shadow: 0 1px 3px rgba(0,0,0,.05);\n }\n\n \/* \u2500\u2500 Calculator panel \u2500\u2500 *\/\n .ci-panel { padding: 22px 22px 20px; display: flex; flex-direction: column; gap: 18px; }\n\n .ci-panel-head { display: flex; align-items: center; justify-content: space-between; }\n\n .ci-panel-title {\n font-size: 16px;\n font-weight: 700;\n color: var(--text-primary);\n letter-spacing: -0.01em;\n }\n\n .ci-reset-btn {\n display: inline-flex;\n align-items: center;\n gap: 5px;\n background: none;\n border: none;\n cursor: pointer;\n color: var(--text-secondary);\n font-family: inherit;\n font-size: 12.5px;\n font-weight: 500;\n padding: 4px 8px;\n border-radius: var(--radius-sm);\n transition: color 0.15s, background 0.15s;\n }\n .ci-reset-btn:hover { color: var(--text-primary); background: var(--bg-soft); }\n\n \/* \u2500\u2500 Boxes (enter any two \u2192 third computed) \u2500\u2500 *\/\n .ci-boxes {\n display: grid;\n grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));\n gap: 14px;\n }\n\n .ci-box {\n display: flex;\n flex-direction: column;\n gap: 10px;\n padding: 14px 14px 16px;\n border: 1px solid var(--border-mid);\n border-radius: var(--radius-md);\n background: var(--bg);\n transition: border-color 0.15s, background 0.15s, box-shadow 0.15s;\n }\n .ci-box--computed {\n border-color: var(--green);\n background: var(--green-xlight);\n box-shadow: 0 0 0 3px rgba(26,107,60,.10);\n }\n\n .ci-box-head { display: flex; align-items: center; justify-content: space-between; gap: 8px; min-height: 20px; }\n\n .ci-box-label {\n display: inline-flex;\n align-items: center;\n gap: 6px;\n font-size: 13px;\n font-weight: 600;\n color: var(--text-secondary);\n }\n .ci-box--computed .ci-box-label { color: var(--green-dark); }\n .ci-box-label svg { flex-shrink: 0; }\n\n .ci-box-badge {\n font-size: 10px;\n font-weight: 700;\n letter-spacing: 0.06em;\n text-transform: uppercase;\n color: #fff;\n background: var(--green);\n padding: 2px 7px;\n border-radius: 999px;\n }\n\n .ci-box-input-wrap { position: relative; display: flex; align-items: center; gap: 8px; }\n\n .ci-box-input {\n flex: 1;\n width: 100%;\n min-width: 0;\n padding: 10px 12px;\n border: 1px solid var(--border-mid);\n border-radius: var(--radius-sm);\n font-family: ui-monospace, 'SF Mono', Menlo, Consolas, monospace;\n font-size: 16px;\n font-weight: 500;\n color: var(--text-primary);\n background: var(--bg);\n outline: none;\n transition: border-color 0.15s, box-shadow 0.15s;\n -moz-appearance: textfield;\n }\n .ci-box-input::-webkit-outer-spin-button,\n .ci-box-input::-webkit-inner-spin-button { -webkit-appearance: none; margin: 0; }\n .ci-box-input:hover { border-color: var(--green-mid); }\n .ci-box-input:focus { border-color: var(--green); box-shadow: 0 0 0 3px rgba(26,107,60,.15); }\n .ci-box--computed .ci-box-input { background: #fff; border-color: var(--green-light); }\n\n .ci-box-unit-static {\n font-size: 13px;\n font-weight: 500;\n color: var(--gray-650);\n flex-shrink: 0;\n min-width: 34px;\n text-align: right;\n }\n\n \/* \u2500\u2500 Custom unit dropdown \u2500\u2500 *\/\n .ci-unit { position: relative; flex-shrink: 0; }\n\n .ci-unit-btn {\n display: inline-flex;\n align-items: center;\n gap: 4px;\n padding: 8px 8px 8px 10px;\n border: 1px solid var(--border-mid);\n border-radius: var(--radius-sm);\n background: var(--bg-soft);\n cursor: pointer;\n font-family: inherit;\n font-size: 13px;\n font-weight: 500;\n color: var(--text-primary);\n transition: border-color 0.15s, background 0.15s;\n white-space: nowrap;\n }\n .ci-unit-btn:hover { border-color: var(--green-mid); }\n .ci-unit-caret { transition: transform 0.2s; }\n .ci-unit-caret--open { transform: rotate(180deg); }\n\n .ci-unit-menu {\n position: absolute;\n top: calc(100% + 4px);\n right: 0;\n z-index: 20;\n min-width: 76px;\n list-style: none;\n padding: 4px;\n background: var(--bg);\n border: 1px solid var(--border);\n border-radius: var(--radius-sm);\n box-shadow: 0 6px 18px rgba(0,0,0,.12);\n }\n .ci-unit-opt {\n display: flex;\n align-items: center;\n justify-content: space-between;\n gap: 8px;\n width: 100%;\n padding: 7px 9px;\n border: none;\n background: none;\n cursor: pointer;\n border-radius: 4px;\n font-family: inherit;\n font-size: 13px;\n color: var(--text-primary);\n text-align: left;\n transition: background 0.12s, color 0.12s;\n }\n .ci-unit-opt:hover { background: var(--bg-soft); }\n .ci-unit-opt--active { color: var(--green); font-weight: 600; }\n\n .ci-hint-line {\n font-size: 12px;\n line-height: 1.6;\n color: var(--gray-650);\n }\n\n \/* \u2500\u2500 Formula bar \u2500\u2500 *\/\n .ci-formula-bar {\n display: flex;\n align-items: center;\n gap: 16px;\n flex-wrap: wrap;\n padding: 14px 20px;\n background: var(--bg-soft);\n border: 1px solid var(--border);\n border-radius: var(--radius-md);\n }\n\n .ci-formula-tag {\n font-size: 10px;\n font-weight: 700;\n letter-spacing: 0.1em;\n text-transform: uppercase;\n color: var(--gray-650);\n flex-shrink: 0;\n }\n\n .ci-formula-spacer { flex: 1; min-width: 0; }\n\n .ci-formula-toggle {\n display: inline-flex;\n align-items: center;\n gap: 5px;\n background: none;\n border: 1px solid var(--green-light);\n border-radius: var(--radius-sm);\n cursor: pointer;\n color: var(--green);\n font-family: inherit;\n font-size: 12.5px;\n font-weight: 600;\n padding: 5px 10px;\n transition: background 0.15s, border-color 0.15s;\n flex-shrink: 0;\n }\n .ci-formula-toggle:hover { background: var(--green-xlight); border-color: var(--green-mid); }\n .ci-formula-toggle svg { transition: transform 0.2s; }\n .ci-formula-toggle--open svg { transform: rotate(180deg); }\n\n \/* \u2500\u2500 Formula reference panel \u2500\u2500 *\/\n .ci-formula-panel {\n border: 1px solid var(--border);\n border-radius: var(--radius-md);\n overflow: hidden;\n }\n .ci-formula-panel-body { padding: 18px 20px; display: flex; flex-direction: column; gap: 10px; }\n .ci-formula-note { font-size: 12.5px; color: var(--text-secondary); line-height: 1.6; }\n .ci-tex-block { margin: 2px 0 6px; }\n\n .hidden { display: none; }\n\n @media (max-width: 900px) {\n body { padding: 28px 16px 48px; }\n }\n @media (max-width: 540px) {\n .ci-boxes { grid-template-columns: 1fr; }\n }\n <\/style>\n<\/head>\n<body>\n\n <script type=\"application\/ld+json\">\n{\n \"@context\": \"https:\/\/schema.org\",\n \"@type\": \"WebApplication\",\n \"@id\": \"#calc-torque\",\n \"name\": \"Torque, power and rotation speed calculator\",\n \"description\": \"Calculate the torque, power and rotation speed of a shaft from any two values, using the relation P = Mt \u00b7 \u03c9 with \u03c9 = 2\u03c0n\/60.\",\n \"applicationCategory\": \"UtilitiesApplication\",\n \"operatingSystem\": \"Web\",\n \"browserRequirements\": \"Requires JavaScript\",\n \"inLanguage\": \"en\",\n \"isAccessibleForFree\": true,\n \"offers\": {\n \"@type\": \"Offer\",\n \"price\": \"0\",\n \"priceCurrency\": \"EUR\"\n },\n \"featureList\": [\n \"Torque from power and rotation speed\",\n \"Power from torque and rotation speed\",\n \"Rotation speed from power and torque\",\n \"Power unit conversion (kW \/ W)\"\n ],\n \"about\": [\n { \"@type\": \"Thing\", \"name\": \"Torque\" },\n { \"@type\": \"Thing\", \"name\": \"Power\" },\n { \"@type\": \"Thing\", \"name\": \"Rotation speed\" }\n ]\n}\n <\/script>\n\n <h1 class=\"article__title\">Torque, power and rotation speed calculator<\/h1>\n <p class=\"article__subtitle\">\n Calculate the torque, power and rotation speed of a shaft from any two values,\n using the relation P = M<sub>t<\/sub> \u00b7 \u03c9 with \u03c9 = 2\u03c0n\/60.\n <\/p>\n\n <div class=\"ci-host\">\n\n \n <div class=\"infobox\">\n <div class=\"infobox__title\">\n <svg width=\"13\" height=\"13\" viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\" stroke-linecap=\"round\" stroke-linejoin=\"round\"><circle cx=\"12\" cy=\"12\" r=\"10\"><\/circle><line x1=\"12\" y1=\"16\" x2=\"12\" y2=\"12\"><\/line><line x1=\"12\" y1=\"8\" x2=\"12.01\" y2=\"8\"><\/line><\/svg>\n Fundamental torque\u2013power relation\n <\/div>\n <p class=\"infobox__text\">\n On a rotating shaft the mechanical power is the product of the torque and the angular velocity:\n P = M<sub>t<\/sub> \u00b7 \u03c9, with \u03c9 = 2\u03c0n\/60. Given any two of these quantities, the third is\n uniquely determined.\n <\/p>\n <\/div>\n\n \n <section class=\"ci-card ci-panel\">\n <div class=\"ci-panel-head\">\n <h2 class=\"ci-panel-title\">Enter the values<\/h2>\n <button class=\"ci-reset-btn\" id=\"btn-reset\" type=\"button\">\n <svg width=\"13\" height=\"13\" viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\" stroke-linecap=\"round\" stroke-linejoin=\"round\">\n <polyline points=\"1 4 1 10 7 10\"><\/polyline>\n <path d=\"M3.51 15a9 9 0 1 0 .49-5.66\"><\/path>\n <\/svg>\n Reset\n <\/button>\n <\/div>\n\n <div class=\"ci-boxes\" id=\"boxes\">\n \n <\/div>\n\n <p class=\"ci-hint-line\">\n Enter any two values: the third is calculated automatically.\n Changing the unit of measurement converts the values already entered.\n <\/p>\n <\/section>\n\n \n <div class=\"ci-formula-bar\">\n <span class=\"ci-formula-tag\">Formula<\/span>\n <span id=\"formula-main\"><\/span>\n <div class=\"ci-formula-spacer\"><\/div>\n <button class=\"ci-formula-toggle\" id=\"btn-formulas\" type=\"button\">\n <span id=\"formula-toggle-label\">All formulas<\/span>\n <svg width=\"14\" height=\"14\" viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\" stroke-linecap=\"round\" stroke-linejoin=\"round\"><polyline points=\"6 9 12 15 18 9\"><\/polyline><\/svg>\n <\/button>\n <\/div>\n\n \n <div class=\"ci-formula-panel hidden\" id=\"panel-formulas\">\n <div class=\"ci-formula-panel-body\">\n <p class=\"ci-formula-note\">\n General formula in SI units (P in W, M<sub>t<\/sub> in N\u00b7m, \u03c9 in rad\/s):\n <\/p>\n <div class=\"ci-tex-block\" id=\"tex-general\"><\/div>\n <p class=\"ci-formula-note\">Inverse derivations:<\/p>\n <div class=\"ci-tex-block\" id=\"tex-inverse\"><\/div>\n <\/div>\n <\/div>\n\n <\/div>\n\n <script>\n \/* \u2500\u2500 Fields & units \u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\n Each unit stores `f` = base SI units per 1 display unit.\n Base formula (all SI): P[W] = Mt[N\u00b7m] \u00b7 \u03c9[rad\/s] *\/\n const FIELDS = [\n {\n id: 'P', label: 'Power', icon: 'zap',\n units: [\n { u: 'kW', f: 1000 },\n { u: 'W', f: 1 },\n ],\n },\n {\n id: 'Mt', label: 'Torque', icon: 'refresh',\n units: [\n { u: 'N\u00b7m', f: 1 },\n ],\n },\n {\n id: 'n', label: 'Rotation speed', icon: 'gauge',\n units: [\n { u: 'rpm', f: (2 * Math.PI) \/ 60 },\n ],\n },\n ];\n\n const ICONS = {\n zap: '<polygon points=\"13 2 3 14 12 14 11 22 21 10 12 10 13 2\"><\/polygon>',\n refresh: '<polyline points=\"23 4 23 10 17 10\"><\/polyline><polyline points=\"1 20 1 14 7 14\"><\/polyline><path d=\"M3.51 9a9 9 0 0 1 14.85-3.36L23 10M1 14l4.64 4.36A9 9 0 0 0 20.49 15\"><\/path>',\n gauge: '<path d=\"M12 21a9 9 0 1 0-9-9\"><\/path><path d=\"M3 12h4\"><\/path><path d=\"M12 12l4-3\"><\/path>',\n };\n\n const FIELD_BY_ID = Object.fromEntries(FIELDS.map(fld => [fld.id, fld]));\n\n \/\/ factor (base per display unit) for a field given the selected unit string\n function factor(id, unit) {\n return FIELD_BY_ID[id].units.find(x => x.u === unit).f;\n }\n\n \/\/ Compute the target in BASE SI units from the two known base values\n function computeBase(target, Pb, Mtb, wb) {\n if (target === 'P') return Mtb * wb; \/\/ P = Mt \u00b7 \u03c9\n if (target === 'Mt') return Pb \/ wb; \/\/ Mt = P \/ \u03c9\n if (target === 'n') return Pb \/ Mtb; \/\/ \u03c9 = P \/ Mt\n return NaN;\n }\n\n function fmt(n) {\n if (!Number.isFinite(n)) return '';\n return parseFloat(n.toPrecision(6)).toString();\n }\n\n function tex(el, str, block) {\n if (window.katex) katex.render(str, el, { displayMode: !!block, throwOnError: false });\n else el.textContent = str;\n }\n\n const INITIAL_UNITS = { P: 'kW', Mt: 'N\u00b7m', n: 'rpm' };\n\n \/\/ \u2500\u2500 State \u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\n let vals = { P: '', Mt: '', n: '' };\n let units = { ...INITIAL_UNITS };\n let order = []; \/\/ fields currently holding a manual value, most-recent first\n let computed = null;\n let openMenu = null; \/\/ id of field with open unit menu\n let formulasOpen = false;\n\n const base = (id) => {\n const v = parseFloat(vals[id]);\n return Number.isFinite(v) ? v * factor(id, units[id]) : NaN;\n };\n\n \/\/ Derive the remaining field from the two most-recently-filled ones.\n \/\/ `order` only ever contains fields the user has manually filled, so an\n \/\/ emptied field is no longer a candidate input.\n function recompute() {\n const ids = FIELDS.map(f => f.id);\n\n if (order.length >= 2) {\n \/\/ target = the one field that is not among the two most-recent inputs\n const target = ids.find(id => id !== order[0] && id !== order[1]);\n const s1 = base(order[0]);\n const s2 = base(order[1]);\n\n if (Number.isFinite(s1) && s1 !== 0 && Number.isFinite(s2) && s2 !== 0) {\n const resBase = computeBase(target, base('P'), base('Mt'), base('n'));\n vals[target] = fmt(resBase \/ factor(target, units[target]));\n computed = target;\n return;\n }\n vals[target] = '';\n computed = null;\n return;\n }\n\n \/\/ Fewer than two manual inputs: nothing to derive \u2014 clear whatever was computed\n ids.forEach(id => { if (!order.includes(id)) vals[id] = ''; });\n computed = null;\n }\n\n function handleChange(id, raw) {\n vals[id] = raw;\n const filled = Number.isFinite(parseFloat(raw));\n order = order.filter(f => f !== id);\n if (filled) order = [id, ...order];\n recompute();\n \/\/ Patch in place \u2014 rebuilding the DOM here would drop focus from the\n \/\/ input being typed. The field just edited (id) is never the computed\n \/\/ target, so its own value\/caret is left untouched.\n patch(id);\n }\n\n \/\/ Update values, computed highlighting and formula without rebuilding DOM\n function patch(focusedId) {\n FIELDS.forEach(({ id }) => {\n const box = document.querySelector(`.ci-box[data-field=\"${id}\"]`);\n const input = box.querySelector('.ci-box-input');\n const badge = box.querySelector(`[data-badge=\"${id}\"]`);\n const isComputed = computed === id;\n box.classList.toggle('ci-box--computed', isComputed);\n badge.classList.toggle('hidden', !isComputed);\n if (id !== focusedId && input.value !== vals[id]) input.value = vals[id];\n });\n renderFormulas();\n }\n\n \/\/ Changing a unit converts the value already in that box (physical value unchanged)\n function handleUnitChange(id, newUnit) {\n const v = parseFloat(vals[id]);\n if (Number.isFinite(v)) {\n vals[id] = fmt((v * factor(id, units[id])) \/ factor(id, newUnit));\n }\n units[id] = newUnit;\n openMenu = null;\n recompute();\n render();\n }\n\n function reset() {\n vals = { P: '', Mt: '', n: '' };\n units = { ...INITIAL_UNITS };\n order = [];\n computed = null;\n openMenu = null;\n render();\n }\n\n \/\/ \u2500\u2500 Render \u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\n function svgIcon(name) {\n return `<svg width=\"15\" height=\"15\" viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\" stroke-linecap=\"round\" stroke-linejoin=\"round\">${ICONS[name]}<\/svg>`;\n }\n\n function render() {\n const boxes = document.getElementById('boxes');\n boxes.innerHTML = FIELDS.map(({ id, label, icon, units: opts }) => {\n const isComputed = computed === id;\n const unitCtrl = opts.length > 1\n ? `<div class=\"ci-unit\" data-unit-field=\"${id}\">\n <button type=\"button\" class=\"ci-unit-btn\" data-unit-toggle=\"${id}\" aria-haspopup=\"listbox\" aria-expanded=\"${openMenu === id}\">\n ${units[id]}\n <svg class=\"ci-unit-caret${openMenu === id ? ' ci-unit-caret--open' : ''}\" width=\"13\" height=\"13\" viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\" stroke-linecap=\"round\" stroke-linejoin=\"round\"><polyline points=\"6 9 12 15 18 9\"><\/polyline><\/svg>\n <\/button>\n ${openMenu === id ? `<ul class=\"ci-unit-menu\" role=\"listbox\">\n ${opts.map(o => `<li role=\"option\" aria-selected=\"${o.u === units[id]}\">\n <button type=\"button\" class=\"ci-unit-opt${o.u === units[id] ? ' ci-unit-opt--active' : ''}\" data-unit-pick=\"${id}\" data-unit-value=\"${o.u}\">\n ${o.u}${o.u === units[id] ? '<svg width=\"13\" height=\"13\" viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2.5\" stroke-linecap=\"round\" stroke-linejoin=\"round\"><polyline points=\"20 6 9 17 4 12\"><\/polyline><\/svg>' : ''}\n <\/button>\n <\/li>`).join('')}\n <\/ul>` : ''}\n <\/div>`\n : `<span class=\"ci-box-unit-static\">${units[id]}<\/span>`;\n\n return `\n <div class=\"ci-box${isComputed ? ' ci-box--computed' : ''}\" data-field=\"${id}\">\n <div class=\"ci-box-head\">\n <span class=\"ci-box-label\">${svgIcon(icon)} ${label}<\/span>\n <span class=\"ci-box-badge${isComputed ? '' : ' hidden'}\" data-badge=\"${id}\">computed<\/span>\n <\/div>\n <div class=\"ci-box-input-wrap\">\n <input type=\"number\" class=\"ci-box-input\" data-input=\"${id}\" value=\"${vals[id]}\" \/>\n ${unitCtrl}\n <\/div>\n <\/div>`;\n }).join('');\n\n renderFormulas();\n }\n\n function renderFormulas() {\n \/\/ Formula bar (main = formula for the currently computed field, default P)\n const MAIN = {\n P: 'P = M_t \\\\cdot \\\\omega',\n Mt: 'M_t = \\\\dfrac{P}{\\\\omega} = \\\\dfrac{60\\\\,P}{2\\\\pi\\\\, n}',\n n: 'n = \\\\dfrac{60\\\\,P}{2\\\\pi\\\\, M_t}',\n };\n tex(document.getElementById('formula-main'), MAIN[computed] || MAIN.P, false);\n\n \/\/ Formula reference panel\n tex(document.getElementById('tex-general'),\n 'P = M_t \\\\cdot \\\\omega \\\\qquad \\\\omega = \\\\dfrac{2\\\\pi\\\\, n}{60}', true);\n tex(document.getElementById('tex-inverse'),\n 'M_t = \\\\dfrac{P}{\\\\omega} = \\\\dfrac{60\\\\,P}{2\\\\pi\\\\, n} \\\\qquad n = \\\\dfrac{60\\\\,P}{2\\\\pi\\\\, M_t}', true);\n }\n\n \/\/ \u2500\u2500 Event delegation \u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\n document.getElementById('boxes').addEventListener('input', (e) => {\n const id = e.target.getAttribute('data-input');\n if (id) handleChange(id, e.target.value);\n });\n\n document.getElementById('boxes').addEventListener('click', (e) => {\n const toggle = e.target.closest('[data-unit-toggle]');\n if (toggle) {\n const id = toggle.getAttribute('data-unit-toggle');\n openMenu = openMenu === id ? null : id;\n render();\n return;\n }\n const pick = e.target.closest('[data-unit-pick]');\n if (pick) {\n handleUnitChange(pick.getAttribute('data-unit-pick'), pick.getAttribute('data-unit-value'));\n }\n });\n\n \/\/ Close unit menu on outside click \/ Escape\n document.addEventListener('mousedown', (e) => {\n if (openMenu && !e.target.closest('.ci-unit')) { openMenu = null; render(); }\n });\n document.addEventListener('keydown', (e) => {\n if (e.key === 'Escape' && openMenu) { openMenu = null; render(); }\n });\n\n document.getElementById('btn-reset').addEventListener('click', reset);\n\n document.getElementById('btn-formulas').addEventListener('click', () => {\n formulasOpen = !formulasOpen;\n document.getElementById('panel-formulas').classList.toggle('hidden', !formulasOpen);\n document.getElementById('btn-formulas').classList.toggle('ci-formula-toggle--open', formulasOpen);\n document.getElementById('formula-toggle-label').textContent =\n formulasOpen ? 'Hide' : 'All formulas';\n });\n\n \/\/ \u2500\u2500 Boot \u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\n render();\n window.addEventListener('load', render); \/\/ re-render once KaTeX (deferred) is ready\n <\/script>\n<\/body>\n<\/html>\n\n","protected":false},"excerpt":{"rendered":"<p>Calculate the torque, power and rotation speed of a shaft from any two values.<\/p>\n","protected":false},"parent":0,"template":"","meta":{"_acf_changed":false},"campo-applicazione":[5452],"categoria-ct":[5444],"class_list":["post-25669","centro-tecnico","type-centro-tecnico","status-publish","hentry","campo-applicazione-calcolo","categoria-ct-cylindrical-technopolymer-gears"],"acf":[],"yoast_head":"\n<title>Torque, Power and Speed Calculator | Stagnoli Gears Shop<\/title>\n<meta name=\"description\" content=\"Calculate torque, power and rotational speed of a shaft from two values. Use the online tool by Stagnoli Gears Shop.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/shop.stagnoligears.com\/en\/technical-hub\/torque-power-and-rotation-speed-calculator\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Torque, Power and Speed Calculator | Stagnoli Gears Shop\" \/>\n<meta property=\"og:description\" content=\"Calculate torque, power and rotational speed of a shaft from two values. Use the online tool by Stagnoli Gears Shop.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/shop.stagnoligears.com\/en\/technical-hub\/torque-power-and-rotation-speed-calculator\/\" \/>\n<meta property=\"og:site_name\" content=\"Stagnoli Gears Shop\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/StagnoliGears\" \/>\n<meta property=\"article:modified_time\" content=\"2026-07-10T11:44:25+00:00\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/shop.stagnoligears.com\\\/en\\\/technical-hub\\\/torque-power-and-rotation-speed-calculator\\\/\",\"url\":\"https:\\\/\\\/shop.stagnoligears.com\\\/en\\\/technical-hub\\\/torque-power-and-rotation-speed-calculator\\\/\",\"name\":\"Torque, Power and Speed Calculator | Stagnoli Gears Shop\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/shop.stagnoligears.com\\\/en\\\/#website\"},\"datePublished\":\"2026-07-03T12:13:25+00:00\",\"dateModified\":\"2026-07-10T11:44:25+00:00\",\"description\":\"Calculate torque, power and rotational speed of a shaft from two values. Use the online tool by Stagnoli Gears Shop.\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/shop.stagnoligears.com\\\/en\\\/technical-hub\\\/torque-power-and-rotation-speed-calculator\\\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/shop.stagnoligears.com\\\/en\\\/technical-hub\\\/torque-power-and-rotation-speed-calculator\\\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/shop.stagnoligears.com\\\/en\\\/technical-hub\\\/torque-power-and-rotation-speed-calculator\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/shop.stagnoligears.com\\\/en\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Torque, power and rotation speed calculator\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/shop.stagnoligears.com\\\/en\\\/#website\",\"url\":\"https:\\\/\\\/shop.stagnoligears.com\\\/en\\\/\",\"name\":\"Stagnoli\",\"description\":\"\",\"publisher\":{\"@id\":\"https:\\\/\\\/shop.stagnoligears.com\\\/en\\\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/shop.stagnoligears.com\\\/en\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/shop.stagnoligears.com\\\/en\\\/#organization\",\"name\":\"Stagnoli Gears\",\"url\":\"https:\\\/\\\/shop.stagnoligears.com\\\/en\\\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/shop.stagnoligears.com\\\/en\\\/#\\\/schema\\\/logo\\\/image\\\/\",\"url\":\"https:\\\/\\\/shop.stagnoligears.com\\\/wp-content\\\/uploads\\\/logo-stagnoli-shop.svg\",\"contentUrl\":\"https:\\\/\\\/shop.stagnoligears.com\\\/wp-content\\\/uploads\\\/logo-stagnoli-shop.svg\",\"width\":1,\"height\":1,\"caption\":\"Stagnoli Gears\"},\"image\":{\"@id\":\"https:\\\/\\\/shop.stagnoligears.com\\\/en\\\/#\\\/schema\\\/logo\\\/image\\\/\"},\"sameAs\":[\"https:\\\/\\\/www.facebook.com\\\/StagnoliGears\",\"https:\\\/\\\/www.youtube.com\\\/@stagnoli_gears\",\"https:\\\/\\\/www.linkedin.com\\\/showcase\\\/stagnoli-gears\\\/\"]}]}<\/script>\n","yoast_head_json":{"title":"Torque, Power and Speed Calculator | Stagnoli Gears Shop","description":"Calculate torque, power and rotational speed of a shaft from two values. Use the online tool by Stagnoli Gears Shop.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/shop.stagnoligears.com\/en\/technical-hub\/torque-power-and-rotation-speed-calculator\/","og_locale":"en_US","og_type":"article","og_title":"Torque, Power and Speed Calculator | Stagnoli Gears Shop","og_description":"Calculate torque, power and rotational speed of a shaft from two values. Use the online tool by Stagnoli Gears Shop.","og_url":"https:\/\/shop.stagnoligears.com\/en\/technical-hub\/torque-power-and-rotation-speed-calculator\/","og_site_name":"Stagnoli Gears Shop","article_publisher":"https:\/\/www.facebook.com\/StagnoliGears","article_modified_time":"2026-07-10T11:44:25+00:00","twitter_card":"summary_large_image","twitter_misc":{"Est. reading time":"1 minute"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/shop.stagnoligears.com\/en\/technical-hub\/torque-power-and-rotation-speed-calculator\/","url":"https:\/\/shop.stagnoligears.com\/en\/technical-hub\/torque-power-and-rotation-speed-calculator\/","name":"Torque, Power and Speed Calculator | Stagnoli Gears Shop","isPartOf":{"@id":"https:\/\/shop.stagnoligears.com\/en\/#website"},"datePublished":"2026-07-03T12:13:25+00:00","dateModified":"2026-07-10T11:44:25+00:00","description":"Calculate torque, power and rotational speed of a shaft from two values. Use the online tool by Stagnoli Gears Shop.","breadcrumb":{"@id":"https:\/\/shop.stagnoligears.com\/en\/technical-hub\/torque-power-and-rotation-speed-calculator\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/shop.stagnoligears.com\/en\/technical-hub\/torque-power-and-rotation-speed-calculator\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/shop.stagnoligears.com\/en\/technical-hub\/torque-power-and-rotation-speed-calculator\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/shop.stagnoligears.com\/en\/"},{"@type":"ListItem","position":2,"name":"Torque, power and rotation speed calculator"}]},{"@type":"WebSite","@id":"https:\/\/shop.stagnoligears.com\/en\/#website","url":"https:\/\/shop.stagnoligears.com\/en\/","name":"Stagnoli","description":"","publisher":{"@id":"https:\/\/shop.stagnoligears.com\/en\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/shop.stagnoligears.com\/en\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"},{"@type":"Organization","@id":"https:\/\/shop.stagnoligears.com\/en\/#organization","name":"Stagnoli Gears","url":"https:\/\/shop.stagnoligears.com\/en\/","logo":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/shop.stagnoligears.com\/en\/#\/schema\/logo\/image\/","url":"https:\/\/shop.stagnoligears.com\/wp-content\/uploads\/logo-stagnoli-shop.svg","contentUrl":"https:\/\/shop.stagnoligears.com\/wp-content\/uploads\/logo-stagnoli-shop.svg","width":1,"height":1,"caption":"Stagnoli Gears"},"image":{"@id":"https:\/\/shop.stagnoligears.com\/en\/#\/schema\/logo\/image\/"},"sameAs":["https:\/\/www.facebook.com\/StagnoliGears","https:\/\/www.youtube.com\/@stagnoli_gears","https:\/\/www.linkedin.com\/showcase\/stagnoli-gears\/"]}]}},"_links":{"self":[{"href":"https:\/\/shop.stagnoligears.com\/en\/wp-json\/wp\/v2\/centro-tecnico\/25669","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/shop.stagnoligears.com\/en\/wp-json\/wp\/v2\/centro-tecnico"}],"about":[{"href":"https:\/\/shop.stagnoligears.com\/en\/wp-json\/wp\/v2\/types\/centro-tecnico"}],"wp:attachment":[{"href":"https:\/\/shop.stagnoligears.com\/en\/wp-json\/wp\/v2\/media?parent=25669"}],"wp:term":[{"taxonomy":"campo-applicazione","embeddable":true,"href":"https:\/\/shop.stagnoligears.com\/en\/wp-json\/wp\/v2\/campo-applicazione?post=25669"},{"taxonomy":"categoria-ct","embeddable":true,"href":"https:\/\/shop.stagnoligears.com\/en\/wp-json\/wp\/v2\/categoria-ct?post=25669"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}

{"id":25669,"date":"2026-07-03T14:13:25","date_gmt":"2026-07-03T12:13:25","guid":{"rendered":"https:\/\/shop.stagnoligears.com\/?post_type=centro-tecnico&p=25669"},"modified":"2026-07-10T13:44:25","modified_gmt":"2026-07-10T11:44:25","slug":"torque-power-and-rotation-speed-calculator","status":"publish","type":"centro-tecnico","link":"https:\/\/shop.stagnoligears.com\/en\/technical-hub\/torque-power-and-rotation-speed-calculator\/","title":{"rendered":"Torque, power and rotation speed calculator"},"content":{"rendered":"\n\n\n\n \n \n \n Torque, power and rotation speed calculator<\/title>\n\n <link rel=\"preconnect\" href=\"https:\/\/fonts.googleapis.com\" \/>\n <link rel=\"preconnect\" href=\"https:\/\/fonts.gstatic.com\" crossorigin \/>\n <link href=\"https:\/\/fonts.googleapis.com\/css2?family=Inter:wght@400;500;600;700&display=swap\" rel=\"stylesheet\" \/>\n\n \n <link rel=\"stylesheet\" href=\"https:\/\/cdn.jsdelivr.net\/npm\/katex@0.16.9\/dist\/katex.min.css\" crossorigin=\"anonymous\" \/>\n <script defer src=\"https:\/\/cdn.jsdelivr.net\/npm\/katex@0.16.9\/dist\/katex.min.js\" crossorigin=\"anonymous\"><\/script>\n\n <style>\n *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }\n\n :root {\n --green: #1a6b3c;\n --green-dark: #0f4a28;\n --green-mid: #2d8a55;\n --green-light: #e8f4ed;\n --green-xlight: #f2faf5;\n --amber: #b45309;\n --amber-light: #fef3c7;\n --red: #b91c1c;\n --bg: #ffffff;\n --bg-soft: #f8f9fa;\n --bg-muted: #f1f3f5;\n --border: #e5e7eb;\n --border-mid: #d1d5db;\n --text-primary: #111827;\n --text-secondary: #4b5563;\n --text-muted: #9ca3af;\n --gray-650: #4b5563;\n --radius-sm: 6px;\n --radius-md: 8px;\n }\n\n body { min-height: 100vh; padding: 40px 28px 64px;\n font-family: 'Inter', sans-serif;\n font-size: 14px;\n letter-spacing: 0.02em;\n color: var(--text-primary);}\n\n .article__title {\n font-size: 22px;\n font-weight: 700;\n color: var(--text-primary);\n line-height: 1.3;\n margin-bottom: 8px;\n }\n\n .article__subtitle {\n font-size: 14px;\n color: var(--text-secondary);\n line-height: 1.75;\n margin-bottom: 24px;\n }\n\n \/* \u2500\u2500 Infobox \u2500\u2500 *\/\n .infobox {\n display: flex;\n flex-direction: column;\n gap: 4px;\n padding: 12px 14px;\n background: var(--green-xlight);\n border: 1px solid var(--green-light);\n border-radius: var(--radius-sm);\n color: var(--green-dark);\n }\n .infobox__title {\n display: flex;\n align-items: center;\n gap: 6px;\n font-size: 12.5px;\n font-weight: 600;\n }\n .infobox__text { font-size: 12px; line-height: 1.6; }\n\n \/* \u2500\u2500 Shell \u2500\u2500 *\/\n .ci-host { display: flex; flex-direction: column; gap: 14px; margin-top: 4px; }\n\n .ci-card {\n background: var(--bg);\n border: 1px solid var(--border);\n border-radius: var(--radius-md);\n box-shadow: 0 1px 3px rgba(0,0,0,.05);\n }\n\n \/* \u2500\u2500 Calculator panel \u2500\u2500 *\/\n .ci-panel { padding: 22px 22px 20px; display: flex; flex-direction: column; gap: 18px; }\n\n .ci-panel-head { display: flex; align-items: center; justify-content: space-between; }\n\n .ci-panel-title {\n font-size: 16px;\n font-weight: 700;\n color: var(--text-primary);\n letter-spacing: -0.01em;\n }\n\n .ci-reset-btn {\n display: inline-flex;\n align-items: center;\n gap: 5px;\n background: none;\n border: none;\n cursor: pointer;\n color: var(--text-secondary);\n font-family: inherit;\n font-size: 12.5px;\n font-weight: 500;\n padding: 4px 8px;\n border-radius: var(--radius-sm);\n transition: color 0.15s, background 0.15s;\n }\n .ci-reset-btn:hover { color: var(--text-primary); background: var(--bg-soft); }\n\n \/* \u2500\u2500 Boxes (enter any two \u2192 third computed) \u2500\u2500 *\/\n .ci-boxes {\n display: grid;\n grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));\n gap: 14px;\n }\n\n .ci-box {\n display: flex;\n flex-direction: column;\n gap: 10px;\n padding: 14px 14px 16px;\n border: 1px solid var(--border-mid);\n border-radius: var(--radius-md);\n background: var(--bg);\n transition: border-color 0.15s, background 0.15s, box-shadow 0.15s;\n }\n .ci-box--computed {\n border-color: var(--green);\n background: var(--green-xlight);\n box-shadow: 0 0 0 3px rgba(26,107,60,.10);\n }\n\n .ci-box-head { display: flex; align-items: center; justify-content: space-between; gap: 8px; min-height: 20px; }\n\n .ci-box-label {\n display: inline-flex;\n align-items: center;\n gap: 6px;\n font-size: 13px;\n font-weight: 600;\n color: var(--text-secondary);\n }\n .ci-box--computed .ci-box-label { color: var(--green-dark); }\n .ci-box-label svg { flex-shrink: 0; }\n\n .ci-box-badge {\n font-size: 10px;\n font-weight: 700;\n letter-spacing: 0.06em;\n text-transform: uppercase;\n color: #fff;\n background: var(--green);\n padding: 2px 7px;\n border-radius: 999px;\n }\n\n .ci-box-input-wrap { position: relative; display: flex; align-items: center; gap: 8px; }\n\n .ci-box-input {\n flex: 1;\n width: 100%;\n min-width: 0;\n padding: 10px 12px;\n border: 1px solid var(--border-mid);\n border-radius: var(--radius-sm);\n font-family: ui-monospace, 'SF Mono', Menlo, Consolas, monospace;\n font-size: 16px;\n font-weight: 500;\n color: var(--text-primary);\n background: var(--bg);\n outline: none;\n transition: border-color 0.15s, box-shadow 0.15s;\n -moz-appearance: textfield;\n }\n .ci-box-input::-webkit-outer-spin-button,\n .ci-box-input::-webkit-inner-spin-button { -webkit-appearance: none; margin: 0; }\n .ci-box-input:hover { border-color: var(--green-mid); }\n .ci-box-input:focus { border-color: var(--green); box-shadow: 0 0 0 3px rgba(26,107,60,.15); }\n .ci-box--computed .ci-box-input { background: #fff; border-color: var(--green-light); }\n\n .ci-box-unit-static {\n font-size: 13px;\n font-weight: 500;\n color: var(--gray-650);\n flex-shrink: 0;\n min-width: 34px;\n text-align: right;\n }\n\n \/* \u2500\u2500 Custom unit dropdown \u2500\u2500 *\/\n .ci-unit { position: relative; flex-shrink: 0; }\n\n .ci-unit-btn {\n display: inline-flex;\n align-items: center;\n gap: 4px;\n padding: 8px 8px 8px 10px;\n border: 1px solid var(--border-mid);\n border-radius: var(--radius-sm);\n background: var(--bg-soft);\n cursor: pointer;\n font-family: inherit;\n font-size: 13px;\n font-weight: 500;\n color: var(--text-primary);\n transition: border-color 0.15s, background 0.15s;\n white-space: nowrap;\n }\n .ci-unit-btn:hover { border-color: var(--green-mid); }\n .ci-unit-caret { transition: transform 0.2s; }\n .ci-unit-caret--open { transform: rotate(180deg); }\n\n .ci-unit-menu {\n position: absolute;\n top: calc(100% + 4px);\n right: 0;\n z-index: 20;\n min-width: 76px;\n list-style: none;\n padding: 4px;\n background: var(--bg);\n border: 1px solid var(--border);\n border-radius: var(--radius-sm);\n box-shadow: 0 6px 18px rgba(0,0,0,.12);\n }\n .ci-unit-opt {\n display: flex;\n align-items: center;\n justify-content: space-between;\n gap: 8px;\n width: 100%;\n padding: 7px 9px;\n border: none;\n background: none;\n cursor: pointer;\n border-radius: 4px;\n font-family: inherit;\n font-size: 13px;\n color: var(--text-primary);\n text-align: left;\n transition: background 0.12s, color 0.12s;\n }\n .ci-unit-opt:hover { background: var(--bg-soft); }\n .ci-unit-opt--active { color: var(--green); font-weight: 600; }\n\n .ci-hint-line {\n font-size: 12px;\n line-height: 1.6;\n color: var(--gray-650);\n }\n\n \/* \u2500\u2500 Formula bar \u2500\u2500 *\/\n .ci-formula-bar {\n display: flex;\n align-items: center;\n gap: 16px;\n flex-wrap: wrap;\n padding: 14px 20px;\n background: var(--bg-soft);\n border: 1px solid var(--border);\n border-radius: var(--radius-md);\n }\n\n .ci-formula-tag {\n font-size: 10px;\n font-weight: 700;\n letter-spacing: 0.1em;\n text-transform: uppercase;\n color: var(--gray-650);\n flex-shrink: 0;\n }\n\n .ci-formula-spacer { flex: 1; min-width: 0; }\n\n .ci-formula-toggle {\n display: inline-flex;\n align-items: center;\n gap: 5px;\n background: none;\n border: 1px solid var(--green-light);\n border-radius: var(--radius-sm);\n cursor: pointer;\n color: var(--green);\n font-family: inherit;\n font-size: 12.5px;\n font-weight: 600;\n padding: 5px 10px;\n transition: background 0.15s, border-color 0.15s;\n flex-shrink: 0;\n }\n .ci-formula-toggle:hover { background: var(--green-xlight); border-color: var(--green-mid); }\n .ci-formula-toggle svg { transition: transform 0.2s; }\n .ci-formula-toggle--open svg { transform: rotate(180deg); }\n\n \/* \u2500\u2500 Formula reference panel \u2500\u2500 *\/\n .ci-formula-panel {\n border: 1px solid var(--border);\n border-radius: var(--radius-md);\n overflow: hidden;\n }\n .ci-formula-panel-body { padding: 18px 20px; display: flex; flex-direction: column; gap: 10px; }\n .ci-formula-note { font-size: 12.5px; color: var(--text-secondary); line-height: 1.6; }\n .ci-tex-block { margin: 2px 0 6px; }\n\n .hidden { display: none; }\n\n @media (max-width: 900px) {\n body { padding: 28px 16px 48px; }\n }\n @media (max-width: 540px) {\n .ci-boxes { grid-template-columns: 1fr; }\n }\n <\/style>\n<\/head>\n<body>\n\n <script type=\"application\/ld+json\">\n{\n \"@context\": \"https:\/\/schema.org\",\n \"@type\": \"WebApplication\",\n \"@id\": \"#calc-torque\",\n \"name\": \"Torque, power and rotation speed calculator\",\n \"description\": \"Calculate the torque, power and rotation speed of a shaft from any two values, using the relation P = Mt \u00b7 \u03c9 with \u03c9 = 2\u03c0n\/60.\",\n \"applicationCategory\": \"UtilitiesApplication\",\n \"operatingSystem\": \"Web\",\n \"browserRequirements\": \"Requires JavaScript\",\n \"inLanguage\": \"en\",\n \"isAccessibleForFree\": true,\n \"offers\": {\n \"@type\": \"Offer\",\n \"price\": \"0\",\n \"priceCurrency\": \"EUR\"\n },\n \"featureList\": [\n \"Torque from power and rotation speed\",\n \"Power from torque and rotation speed\",\n \"Rotation speed from power and torque\",\n \"Power unit conversion (kW \/ W)\"\n ],\n \"about\": [\n { \"@type\": \"Thing\", \"name\": \"Torque\" },\n { \"@type\": \"Thing\", \"name\": \"Power\" },\n { \"@type\": \"Thing\", \"name\": \"Rotation speed\" }\n ]\n}\n <\/script>\n\n <h1 class=\"article__title\">Torque, power and rotation speed calculator<\/h1>\n <p class=\"article__subtitle\">\n Calculate the torque, power and rotation speed of a shaft from any two values,\n using the relation P = M<sub>t<\/sub> \u00b7 \u03c9 with \u03c9 = 2\u03c0n\/60.\n <\/p>\n\n <div class=\"ci-host\">\n\n \n <div class=\"infobox\">\n <div class=\"infobox__title\">\n <svg width=\"13\" height=\"13\" viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\" stroke-linecap=\"round\" stroke-linejoin=\"round\"><circle cx=\"12\" cy=\"12\" r=\"10\"><\/circle><line x1=\"12\" y1=\"16\" x2=\"12\" y2=\"12\"><\/line><line x1=\"12\" y1=\"8\" x2=\"12.01\" y2=\"8\"><\/line><\/svg>\n Fundamental torque\u2013power relation\n <\/div>\n <p class=\"infobox__text\">\n On a rotating shaft the mechanical power is the product of the torque and the angular velocity:\n P = M<sub>t<\/sub> \u00b7 \u03c9, with \u03c9 = 2\u03c0n\/60. Given any two of these quantities, the third is\n uniquely determined.\n <\/p>\n <\/div>\n\n \n <section class=\"ci-card ci-panel\">\n <div class=\"ci-panel-head\">\n <h2 class=\"ci-panel-title\">Enter the values<\/h2>\n <button class=\"ci-reset-btn\" id=\"btn-reset\" type=\"button\">\n <svg width=\"13\" height=\"13\" viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\" stroke-linecap=\"round\" stroke-linejoin=\"round\">\n <polyline points=\"1 4 1 10 7 10\"><\/polyline>\n <path d=\"M3.51 15a9 9 0 1 0 .49-5.66\"><\/path>\n <\/svg>\n Reset\n <\/button>\n <\/div>\n\n <div class=\"ci-boxes\" id=\"boxes\">\n \n <\/div>\n\n <p class=\"ci-hint-line\">\n Enter any two values: the third is calculated automatically.\n Changing the unit of measurement converts the values already entered.\n <\/p>\n <\/section>\n\n \n <div class=\"ci-formula-bar\">\n <span class=\"ci-formula-tag\">Formula<\/span>\n <span id=\"formula-main\"><\/span>\n <div class=\"ci-formula-spacer\"><\/div>\n <button class=\"ci-formula-toggle\" id=\"btn-formulas\" type=\"button\">\n <span id=\"formula-toggle-label\">All formulas<\/span>\n <svg width=\"14\" height=\"14\" viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\" stroke-linecap=\"round\" stroke-linejoin=\"round\"><polyline points=\"6 9 12 15 18 9\"><\/polyline><\/svg>\n <\/button>\n <\/div>\n\n \n <div class=\"ci-formula-panel hidden\" id=\"panel-formulas\">\n <div class=\"ci-formula-panel-body\">\n <p class=\"ci-formula-note\">\n General formula in SI units (P in W, M<sub>t<\/sub> in N\u00b7m, \u03c9 in rad\/s):\n <\/p>\n <div class=\"ci-tex-block\" id=\"tex-general\"><\/div>\n <p class=\"ci-formula-note\">Inverse derivations:<\/p>\n <div class=\"ci-tex-block\" id=\"tex-inverse\"><\/div>\n <\/div>\n <\/div>\n\n <\/div>\n\n <script>\n \/* \u2500\u2500 Fields & units \u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\n Each unit stores `f` = base SI units per 1 display unit.\n Base formula (all SI): P[W] = Mt[N\u00b7m] \u00b7 \u03c9[rad\/s] *\/\n const FIELDS = [\n {\n id: 'P', label: 'Power', icon: 'zap',\n units: [\n { u: 'kW', f: 1000 },\n { u: 'W', f: 1 },\n ],\n },\n {\n id: 'Mt', label: 'Torque', icon: 'refresh',\n units: [\n { u: 'N\u00b7m', f: 1 },\n ],\n },\n {\n id: 'n', label: 'Rotation speed', icon: 'gauge',\n units: [\n { u: 'rpm', f: (2 * Math.PI) \/ 60 },\n ],\n },\n ];\n\n const ICONS = {\n zap: '<polygon points=\"13 2 3 14 12 14 11 22 21 10 12 10 13 2\"><\/polygon>',\n refresh: '<polyline points=\"23 4 23 10 17 10\"><\/polyline><polyline points=\"1 20 1 14 7 14\"><\/polyline><path d=\"M3.51 9a9 9 0 0 1 14.85-3.36L23 10M1 14l4.64 4.36A9 9 0 0 0 20.49 15\"><\/path>',\n gauge: '<path d=\"M12 21a9 9 0 1 0-9-9\"><\/path><path d=\"M3 12h4\"><\/path><path d=\"M12 12l4-3\"><\/path>',\n };\n\n const FIELD_BY_ID = Object.fromEntries(FIELDS.map(fld => [fld.id, fld]));\n\n \/\/ factor (base per display unit) for a field given the selected unit string\n function factor(id, unit) {\n return FIELD_BY_ID[id].units.find(x => x.u === unit).f;\n }\n\n \/\/ Compute the target in BASE SI units from the two known base values\n function computeBase(target, Pb, Mtb, wb) {\n if (target === 'P') return Mtb * wb; \/\/ P = Mt \u00b7 \u03c9\n if (target === 'Mt') return Pb \/ wb; \/\/ Mt = P \/ \u03c9\n if (target === 'n') return Pb \/ Mtb; \/\/ \u03c9 = P \/ Mt\n return NaN;\n }\n\n function fmt(n) {\n if (!Number.isFinite(n)) return '';\n return parseFloat(n.toPrecision(6)).toString();\n }\n\n function tex(el, str, block) {\n if (window.katex) katex.render(str, el, { displayMode: !!block, throwOnError: false });\n else el.textContent = str;\n }\n\n const INITIAL_UNITS = { P: 'kW', Mt: 'N\u00b7m', n: 'rpm' };\n\n \/\/ \u2500\u2500 State \u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\n let vals = { P: '', Mt: '', n: '' };\n let units = { ...INITIAL_UNITS };\n let order = []; \/\/ fields currently holding a manual value, most-recent first\n let computed = null;\n let openMenu = null; \/\/ id of field with open unit menu\n let formulasOpen = false;\n\n const base = (id) => {\n const v = parseFloat(vals[id]);\n return Number.isFinite(v) ? v * factor(id, units[id]) : NaN;\n };\n\n \/\/ Derive the remaining field from the two most-recently-filled ones.\n \/\/ `order` only ever contains fields the user has manually filled, so an\n \/\/ emptied field is no longer a candidate input.\n function recompute() {\n const ids = FIELDS.map(f => f.id);\n\n if (order.length >= 2) {\n \/\/ target = the one field that is not among the two most-recent inputs\n const target = ids.find(id => id !== order[0] && id !== order[1]);\n const s1 = base(order[0]);\n const s2 = base(order[1]);\n\n if (Number.isFinite(s1) && s1 !== 0 && Number.isFinite(s2) && s2 !== 0) {\n const resBase = computeBase(target, base('P'), base('Mt'), base('n'));\n vals[target] = fmt(resBase \/ factor(target, units[target]));\n computed = target;\n return;\n }\n vals[target] = '';\n computed = null;\n return;\n }\n\n \/\/ Fewer than two manual inputs: nothing to derive \u2014 clear whatever was computed\n ids.forEach(id => { if (!order.includes(id)) vals[id] = ''; });\n computed = null;\n }\n\n function handleChange(id, raw) {\n vals[id] = raw;\n const filled = Number.isFinite(parseFloat(raw));\n order = order.filter(f => f !== id);\n if (filled) order = [id, ...order];\n recompute();\n \/\/ Patch in place \u2014 rebuilding the DOM here would drop focus from the\n \/\/ input being typed. The field just edited (id) is never the computed\n \/\/ target, so its own value\/caret is left untouched.\n patch(id);\n }\n\n \/\/ Update values, computed highlighting and formula without rebuilding DOM\n function patch(focusedId) {\n FIELDS.forEach(({ id }) => {\n const box = document.querySelector(`.ci-box[data-field=\"${id}\"]`);\n const input = box.querySelector('.ci-box-input');\n const badge = box.querySelector(`[data-badge=\"${id}\"]`);\n const isComputed = computed === id;\n box.classList.toggle('ci-box--computed', isComputed);\n badge.classList.toggle('hidden', !isComputed);\n if (id !== focusedId && input.value !== vals[id]) input.value = vals[id];\n });\n renderFormulas();\n }\n\n \/\/ Changing a unit converts the value already in that box (physical value unchanged)\n function handleUnitChange(id, newUnit) {\n const v = parseFloat(vals[id]);\n if (Number.isFinite(v)) {\n vals[id] = fmt((v * factor(id, units[id])) \/ factor(id, newUnit));\n }\n units[id] = newUnit;\n openMenu = null;\n recompute();\n render();\n }\n\n function reset() {\n vals = { P: '', Mt: '', n: '' };\n units = { ...INITIAL_UNITS };\n order = [];\n computed = null;\n openMenu = null;\n render();\n }\n\n \/\/ \u2500\u2500 Render \u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\n function svgIcon(name) {\n return `<svg width=\"15\" height=\"15\" viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\" stroke-linecap=\"round\" stroke-linejoin=\"round\">${ICONS[name]}<\/svg>`;\n }\n\n function render() {\n const boxes = document.getElementById('boxes');\n boxes.innerHTML = FIELDS.map(({ id, label, icon, units: opts }) => {\n const isComputed = computed === id;\n const unitCtrl = opts.length > 1\n ? `<div class=\"ci-unit\" data-unit-field=\"${id}\">\n <button type=\"button\" class=\"ci-unit-btn\" data-unit-toggle=\"${id}\" aria-haspopup=\"listbox\" aria-expanded=\"${openMenu === id}\">\n ${units[id]}\n <svg class=\"ci-unit-caret${openMenu === id ? ' ci-unit-caret--open' : ''}\" width=\"13\" height=\"13\" viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\" stroke-linecap=\"round\" stroke-linejoin=\"round\"><polyline points=\"6 9 12 15 18 9\"><\/polyline><\/svg>\n <\/button>\n ${openMenu === id ? `<ul class=\"ci-unit-menu\" role=\"listbox\">\n ${opts.map(o => `<li role=\"option\" aria-selected=\"${o.u === units[id]}\">\n <button type=\"button\" class=\"ci-unit-opt${o.u === units[id] ? ' ci-unit-opt--active' : ''}\" data-unit-pick=\"${id}\" data-unit-value=\"${o.u}\">\n ${o.u}${o.u === units[id] ? '<svg width=\"13\" height=\"13\" viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2.5\" stroke-linecap=\"round\" stroke-linejoin=\"round\"><polyline points=\"20 6 9 17 4 12\"><\/polyline><\/svg>' : ''}\n <\/button>\n <\/li>`).join('')}\n <\/ul>` : ''}\n <\/div>`\n : `<span class=\"ci-box-unit-static\">${units[id]}<\/span>`;\n\n return `\n <div class=\"ci-box${isComputed ? ' ci-box--computed' : ''}\" data-field=\"${id}\">\n <div class=\"ci-box-head\">\n <span class=\"ci-box-label\">${svgIcon(icon)} ${label}<\/span>\n <span class=\"ci-box-badge${isComputed ? '' : ' hidden'}\" data-badge=\"${id}\">computed<\/span>\n <\/div>\n <div class=\"ci-box-input-wrap\">\n <input type=\"number\" class=\"ci-box-input\" data-input=\"${id}\" value=\"${vals[id]}\" \/>\n ${unitCtrl}\n <\/div>\n <\/div>`;\n }).join('');\n\n renderFormulas();\n }\n\n function renderFormulas() {\n \/\/ Formula bar (main = formula for the currently computed field, default P)\n const MAIN = {\n P: 'P = M_t \\\\cdot \\\\omega',\n Mt: 'M_t = \\\\dfrac{P}{\\\\omega} = \\\\dfrac{60\\\\,P}{2\\\\pi\\\\, n}',\n n: 'n = \\\\dfrac{60\\\\,P}{2\\\\pi\\\\, M_t}',\n };\n tex(document.getElementById('formula-main'), MAIN[computed] || MAIN.P, false);\n\n \/\/ Formula reference panel\n tex(document.getElementById('tex-general'),\n 'P = M_t \\\\cdot \\\\omega \\\\qquad \\\\omega = \\\\dfrac{2\\\\pi\\\\, n}{60}', true);\n tex(document.getElementById('tex-inverse'),\n 'M_t = \\\\dfrac{P}{\\\\omega} = \\\\dfrac{60\\\\,P}{2\\\\pi\\\\, n} \\\\qquad n = \\\\dfrac{60\\\\,P}{2\\\\pi\\\\, M_t}', true);\n }\n\n \/\/ \u2500\u2500 Event delegation \u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\n document.getElementById('boxes').addEventListener('input', (e) => {\n const id = e.target.getAttribute('data-input');\n if (id) handleChange(id, e.target.value);\n });\n\n document.getElementById('boxes').addEventListener('click', (e) => {\n const toggle = e.target.closest('[data-unit-toggle]');\n if (toggle) {\n const id = toggle.getAttribute('data-unit-toggle');\n openMenu = openMenu === id ? null : id;\n render();\n return;\n }\n const pick = e.target.closest('[data-unit-pick]');\n if (pick) {\n handleUnitChange(pick.getAttribute('data-unit-pick'), pick.getAttribute('data-unit-value'));\n }\n });\n\n \/\/ Close unit menu on outside click \/ Escape\n document.addEventListener('mousedown', (e) => {\n if (openMenu && !e.target.closest('.ci-unit')) { openMenu = null; render(); }\n });\n document.addEventListener('keydown', (e) => {\n if (e.key === 'Escape' && openMenu) { openMenu = null; render(); }\n });\n\n document.getElementById('btn-reset').addEventListener('click', reset);\n\n document.getElementById('btn-formulas').addEventListener('click', () => {\n formulasOpen = !formulasOpen;\n document.getElementById('panel-formulas').classList.toggle('hidden', !formulasOpen);\n document.getElementById('btn-formulas').classList.toggle('ci-formula-toggle--open', formulasOpen);\n document.getElementById('formula-toggle-label').textContent =\n formulasOpen ? 'Hide' : 'All formulas';\n });\n\n \/\/ \u2500\u2500 Boot \u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\n render();\n window.addEventListener('load', render); \/\/ re-render once KaTeX (deferred) is ready\n <\/script>\n<\/body>\n<\/html>\n\n","protected":false},"excerpt":{"rendered":"<p>Calculate the torque, power and rotation speed of a shaft from any two values.<\/p>\n","protected":false},"parent":0,"template":"","meta":{"_acf_changed":false},"campo-applicazione":[5452],"categoria-ct":[5444],"class_list":["post-25669","centro-tecnico","type-centro-tecnico","status-publish","hentry","campo-applicazione-calcolo","categoria-ct-cylindrical-technopolymer-gears"],"acf":[],"yoast_head":"\n<title>Torque, Power and Speed Calculator | Stagnoli Gears Shop<\/title>\n<meta name=\"description\" content=\"Calculate torque, power and rotational speed of a shaft from two values. Use the online tool by Stagnoli Gears Shop.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/shop.stagnoligears.com\/en\/technical-hub\/torque-power-and-rotation-speed-calculator\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Torque, Power and Speed Calculator | Stagnoli Gears Shop\" \/>\n<meta property=\"og:description\" content=\"Calculate torque, power and rotational speed of a shaft from two values. Use the online tool by Stagnoli Gears Shop.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/shop.stagnoligears.com\/en\/technical-hub\/torque-power-and-rotation-speed-calculator\/\" \/>\n<meta property=\"og:site_name\" content=\"Stagnoli Gears Shop\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/StagnoliGears\" \/>\n<meta property=\"article:modified_time\" content=\"2026-07-10T11:44:25+00:00\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/shop.stagnoligears.com\\\/en\\\/technical-hub\\\/torque-power-and-rotation-speed-calculator\\\/\",\"url\":\"https:\\\/\\\/shop.stagnoligears.com\\\/en\\\/technical-hub\\\/torque-power-and-rotation-speed-calculator\\\/\",\"name\":\"Torque, Power and Speed Calculator | Stagnoli Gears Shop\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/shop.stagnoligears.com\\\/en\\\/#website\"},\"datePublished\":\"2026-07-03T12:13:25+00:00\",\"dateModified\":\"2026-07-10T11:44:25+00:00\",\"description\":\"Calculate torque, power and rotational speed of a shaft from two values. Use the online tool by Stagnoli Gears Shop.\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/shop.stagnoligears.com\\\/en\\\/technical-hub\\\/torque-power-and-rotation-speed-calculator\\\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/shop.stagnoligears.com\\\/en\\\/technical-hub\\\/torque-power-and-rotation-speed-calculator\\\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/shop.stagnoligears.com\\\/en\\\/technical-hub\\\/torque-power-and-rotation-speed-calculator\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/shop.stagnoligears.com\\\/en\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Torque, power and rotation speed calculator\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/shop.stagnoligears.com\\\/en\\\/#website\",\"url\":\"https:\\\/\\\/shop.stagnoligears.com\\\/en\\\/\",\"name\":\"Stagnoli\",\"description\":\"\",\"publisher\":{\"@id\":\"https:\\\/\\\/shop.stagnoligears.com\\\/en\\\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/shop.stagnoligears.com\\\/en\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/shop.stagnoligears.com\\\/en\\\/#organization\",\"name\":\"Stagnoli Gears\",\"url\":\"https:\\\/\\\/shop.stagnoligears.com\\\/en\\\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/shop.stagnoligears.com\\\/en\\\/#\\\/schema\\\/logo\\\/image\\\/\",\"url\":\"https:\\\/\\\/shop.stagnoligears.com\\\/wp-content\\\/uploads\\\/logo-stagnoli-shop.svg\",\"contentUrl\":\"https:\\\/\\\/shop.stagnoligears.com\\\/wp-content\\\/uploads\\\/logo-stagnoli-shop.svg\",\"width\":1,\"height\":1,\"caption\":\"Stagnoli Gears\"},\"image\":{\"@id\":\"https:\\\/\\\/shop.stagnoligears.com\\\/en\\\/#\\\/schema\\\/logo\\\/image\\\/\"},\"sameAs\":[\"https:\\\/\\\/www.facebook.com\\\/StagnoliGears\",\"https:\\\/\\\/www.youtube.com\\\/@stagnoli_gears\",\"https:\\\/\\\/www.linkedin.com\\\/showcase\\\/stagnoli-gears\\\/\"]}]}<\/script>\n","yoast_head_json":{"title":"Torque, Power and Speed Calculator | Stagnoli Gears Shop","description":"Calculate torque, power and rotational speed of a shaft from two values. Use the online tool by Stagnoli Gears Shop.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/shop.stagnoligears.com\/en\/technical-hub\/torque-power-and-rotation-speed-calculator\/","og_locale":"en_US","og_type":"article","og_title":"Torque, Power and Speed Calculator | Stagnoli Gears Shop","og_description":"Calculate torque, power and rotational speed of a shaft from two values. Use the online tool by Stagnoli Gears Shop.","og_url":"https:\/\/shop.stagnoligears.com\/en\/technical-hub\/torque-power-and-rotation-speed-calculator\/","og_site_name":"Stagnoli Gears Shop","article_publisher":"https:\/\/www.facebook.com\/StagnoliGears","article_modified_time":"2026-07-10T11:44:25+00:00","twitter_card":"summary_large_image","twitter_misc":{"Est. reading time":"1 minute"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/shop.stagnoligears.com\/en\/technical-hub\/torque-power-and-rotation-speed-calculator\/","url":"https:\/\/shop.stagnoligears.com\/en\/technical-hub\/torque-power-and-rotation-speed-calculator\/","name":"Torque, Power and Speed Calculator | Stagnoli Gears Shop","isPartOf":{"@id":"https:\/\/shop.stagnoligears.com\/en\/#website"},"datePublished":"2026-07-03T12:13:25+00:00","dateModified":"2026-07-10T11:44:25+00:00","description":"Calculate torque, power and rotational speed of a shaft from two values. Use the online tool by Stagnoli Gears Shop.","breadcrumb":{"@id":"https:\/\/shop.stagnoligears.com\/en\/technical-hub\/torque-power-and-rotation-speed-calculator\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/shop.stagnoligears.com\/en\/technical-hub\/torque-power-and-rotation-speed-calculator\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/shop.stagnoligears.com\/en\/technical-hub\/torque-power-and-rotation-speed-calculator\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/shop.stagnoligears.com\/en\/"},{"@type":"ListItem","position":2,"name":"Torque, power and rotation speed calculator"}]},{"@type":"WebSite","@id":"https:\/\/shop.stagnoligears.com\/en\/#website","url":"https:\/\/shop.stagnoligears.com\/en\/","name":"Stagnoli","description":"","publisher":{"@id":"https:\/\/shop.stagnoligears.com\/en\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/shop.stagnoligears.com\/en\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"},{"@type":"Organization","@id":"https:\/\/shop.stagnoligears.com\/en\/#organization","name":"Stagnoli Gears","url":"https:\/\/shop.stagnoligears.com\/en\/","logo":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/shop.stagnoligears.com\/en\/#\/schema\/logo\/image\/","url":"https:\/\/shop.stagnoligears.com\/wp-content\/uploads\/logo-stagnoli-shop.svg","contentUrl":"https:\/\/shop.stagnoligears.com\/wp-content\/uploads\/logo-stagnoli-shop.svg","width":1,"height":1,"caption":"Stagnoli Gears"},"image":{"@id":"https:\/\/shop.stagnoligears.com\/en\/#\/schema\/logo\/image\/"},"sameAs":["https:\/\/www.facebook.com\/StagnoliGears","https:\/\/www.youtube.com\/@stagnoli_gears","https:\/\/www.linkedin.com\/showcase\/stagnoli-gears\/"]}]}},"_links":{"self":[{"href":"https:\/\/shop.stagnoligears.com\/en\/wp-json\/wp\/v2\/centro-tecnico\/25669","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/shop.stagnoligears.com\/en\/wp-json\/wp\/v2\/centro-tecnico"}],"about":[{"href":"https:\/\/shop.stagnoligears.com\/en\/wp-json\/wp\/v2\/types\/centro-tecnico"}],"wp:attachment":[{"href":"https:\/\/shop.stagnoligears.com\/en\/wp-json\/wp\/v2\/media?parent=25669"}],"wp:term":[{"taxonomy":"campo-applicazione","embeddable":true,"href":"https:\/\/shop.stagnoligears.com\/en\/wp-json\/wp\/v2\/campo-applicazione?post=25669"},{"taxonomy":"categoria-ct","embeddable":true,"href":"https:\/\/shop.stagnoligears.com\/en\/wp-json\/wp\/v2\/categoria-ct?post=25669"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}