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Horsepower Calculator

Calculate engine horsepower from torque and RPM, or convert HP to kW, PS and more.

Torque + RPM Unit Converter ET Method (1/4 mile)

Torque (ft·lb)

RPM

Value

From Unit

Vehicle Weight (lbs)

1/4 Mile ET (seconds)

HP = Weight ÷ (ET/5.825)³

Horsepower

Kilowatts

Metric HP (PS)

ft·lbf/s

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About Horsepower Calculator

Our free Horsepower Calculator helps you run quick, accurate calculations for everyday financial and mathematical needs with just a few inputs. Calculate engine horsepower from torque and RPM, or convert HP to kW, PS and more. Enter your values, and the calculator instantly shows detailed results with breakdowns you can understand. No signup, no ads interrupting your workflow — just accurate, reliable calculations you can trust. Works on any device, saves nothing to our servers.

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