الهندسة

حاسبات هندسة كهربائية وميكانيكية تستخدم ثوابت فيزيائية قياسية موثّقة في كل صفحة.

Solve Ohm's law for voltage, current, resistance or power. Enter any two known values and get all four quantities with the formulas V=IR and P=VI.

Calculate voltage drop for copper or aluminum conductors in DC, single-phase or three-phase circuits from length, current and cross-section in mm².

Convert power between watts, kilowatts, megawatts, mechanical horsepower, metric horsepower (PS) and BTU/h. 1 hp = 745.7 W; 1 PS = 735.5 W.

الميكانيكية

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.

Convert force between newtons, kilonewtons, pounds-force and kilograms-force. Standard factors: 1 lbf = 4.4482216 N, 1 kgf = 9.80665 N.

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.