Mechanical
Electrical and mechanical engineering calculators using standard physical constants, cited on every page.
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Pressure Converter
Convert pressure between bar, psi, kPa, atm and mmHg using standard definitions: 1 atm = 101,325 Pa, 1 bar = 100,000 Pa, 1 psi = 6,894.757 Pa.
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Force Converter
Convert force between newtons, kilonewtons, pounds-force and kilograms-force. Standard factors: 1 lbf = 4.4482216 N, 1 kgf = 9.80665 N.
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Torque Calculator
Calculate torque from power and RPM with T = 9549.3 × kW ÷ rpm, or convert torque between N·m, lb·ft and kgf·m using standard factors.