Free calculator estimate AC motor rating torque in Imperial and SI unit.
Motor Rating
Speed
RPM
Frequency
Hz
Motor Rating Torque | ||
Motor Poles |
Motor Torque
The rating torque of a motor is the torque necessary to produce its rated power (in HP or kW) at rating speed.
In pounds at a foot radius, it is equal to the horsepower times 5252 divided by the rating speed.
In SI unit:
where:
- T : Motor torque in lbft or Nm
- P : Motor real power in HP or kW
- n : Motor speed in RPM