App description

Rotary horsepower calculator

Calculation of rotational horsepower, torque, speed

Select the appropriate unit and enter a value and click on "Calculate". The result will be displayed.

Calculation formula

\(torque = \frac {5252 × horsepower} {speed} \)

Usage example

Known data: rotational horsepower; speed, what is torque?

Input data: rotating horsepower: 2 hp; speed: 3 rpm

Output: torque: 3501.3 lb-ft;

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