Engine HP Calculator

Calculate engine power based on torque and RPM.

Torque (lb-ft) (lb-ft)

Engine RPM

Convert torque and engine speed to horsepower

This calculator determines engine horsepower based on the torque it produces at a specific rotational speed (RPM).

Enter the torque in pound-feet (lb-ft) and the engine speed in revolutions per minute (RPM). The standard formula used is (Torque x RPM) / 5252.

The calculation is mathematically exact based on the provided torque and RPM values.

Frequently Asked Questions

Horsepower is a product of torque and RPM. Low-revving engines (like diesels) may have high torque but lower total HP.