# Motor speed calculator

The motor speed calculator calculates the synchronous speed of an AC induction motor from the supply frequency and the number of poles.

## See Also

## Motor torque calculator parameters

**Motor rating (P):**Motor rating in kW.**Motor speed (n):**Motor speed in RPM.

## How to calculate motor torque?

The motor toque **T** (in N.m) is calculated with the following equation:

\(T=\displaystyle \frac{60}{2\pi}\cdot \displaystyle \frac {P \cdot 1000}{n}\)