Calculate engine horsepower (HP) from torque and RPM. Also calculates kW and PS (metric horsepower).

HP: 285.6
kW: 212.9
PS: 289.6
Torque: 300.0 lb-ft @ 5,000 RPM

Formula: HP = (Torque × RPM) ÷ 5252. 1 HP = 0.7457 kW, 1 HP = 1.0139 PS.

Horsepower from Torque and RPM

The formula to calculate horsepower from torque and RPM is: HP = (Torque × RPM) / 5252 .

1 HP = 0.7457 kW, 1 HP = 1.0139 PS (metric horsepower) .

How to Use This Calculator

1. Enter torque: Engine torque in lb-ft.
2. Enter RPM: Engine speed in revolutions per minute.
3. Calculate: Click “Calculate” or press Enter.