Torque and Rotational Power Calculator
Convert steady shaft torque and rotational speed into mechanical power.
Your result
EVERYDAYEnter your values and select calculate.
On this page How it works & practical examples
How to use the Torque and Rotational Power Calculator
Convert steady shaft torque and rotational speed into mechanical power. The horsepower convention is imperial mechanical hp, with metric PS shown separately.
The calculation
Worked example
100 N·m at 3,000 rpm corresponds to about 31.4159 kW and 42.1295 mechanical horsepower.
Assumptions and limits
No engine measurement, driveline loss, wheel output or acceleration model. Nameplate peak torque and peak rpm should not be combined unless they occur at the same operating point.
Common questions
Which inputs should I use?
Convert steady shaft torque and rotational speed into mechanical power. The horsepower convention is imperial mechanical hp, with metric PS shown separately.
What does the result exclude?
No engine measurement, driveline loss, wheel output or acceleration model. Nameplate peak torque and peak rpm should not be combined unless they occur at the same operating point.