Horsepower Calculator

Torque-times-RPM relationship.

Choose a horsepower workflowUse rotational horsepower, the mechanical definition, or convert horsepower.

3 options

Torque

lb-ft

RPM

HORSEPOWER199.923839 hp

torque × RPM ÷ 5252. Only inputs needed by this operation are shown.

Estimate based on the values shown

Formula checkedMechanical horsepower is 550 ft-lb/s and 745.699871582 watts. Definition mode accepts force, distance, and time units; conversion covers watts, kilowatts, mechanical, metric, electrical, boiler horsepower, and BTU/h.

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