Calculate RPM from horsepower and torque
The formula to calculate Rev. Per Min(RPM) is:
RPM = Horsepower * 5252 / torque;
With our online Horsepower, Torque & RPM Calculator. Power can be measured in
- Horsepower (HP),
- Watts (W) or
- Kilowatts (kW).
Torque can be measured in
- Pound-inch
- Pound-foot
- Newton-meter
- Newton-centimeter
- Gram-meter
- Kilogram-centimeter
- Kilogram-meter
Use our official mobile app to calculate Horsepower, Torque, and RPM. Additionally, we have hundreds of other calculators to choose from.
How do you calculate horsepower from torque and rpm?
It is calculated as follows: H = T x rpm/5252 where
- H is horsepower,
- T is pound-feet,
- rpm is the speed of the engine, and
- 5252 is a constant that makes the units correspond.
How do you convert torque to horsepower?
The horsepower of an engine is calculated by multiplying the torque by the engine’s RPM and dividing it by 5,252.
At what rpm does torque and horsepower cross?
Gasoline engines will always have a horsepower curve and a torque curve crossing at 5,252 RPM. The answer is in this video.
For more information about the Feed Rate Calculator check Milling Machine: Feed Rate Calculator.
Interesting that my lawnmower runs at 2000 RPM, with 7.25 lb-in torque, and the HP is 7.25
Your lawnmower is 0.23hp based on that.
please, i want to know how much horsepower 3200rpm/min is?