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Rotating Machinery Suite

Professional calculators for engine performance, angular velocity, and rotational physics.

Calculation Mode

Unit System

Torque to HP

Rotational Speed (RPM)

Torque (lb-ft)

Calculated Result

Waiting for input...

Formula Reference

HP = (Torque × RPM) / 5252

All calculations follow standard Newtonian mechanics and SI/Imperial constants for maximum engineering accuracy.

Engineering Tip

Did you know? Power is a measure of work over time, while torque is a measure of instantaneous rotational force. Most engine dynamometers measure torque and calculate horsepower.