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Horsepower Calculator from RANDYS Worldwide

Horsepower

Find your exact horsepower output by entering your vehicle’s torque in ft. lbs for any given RPM and click the "Solve" button.

RANDYS Worldwide makes no guarantee to the accuracy of calculations. Please email CustomerService@randysworldwide.com with any calculation errors.
Tire Height

Tire Height
Cubic Inches Liters

Cubic Inches Liters
Transmission Ratio RPM

Transmission Ratio RPM
Engine Displacement

Engine Displacement
Gear Ratio

Gear Ratio
Rod Ratio

Rod Ratio
Horsepower

Horsepower
RPM

RPM

If you know the torque output of your engine at a given rpm you can use this calculator to determine how much horsepower the engine is making at that engine speed. Key in the torque figure and engine rpm and the horsepower output appears in the box below.

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