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

**Notes:**

The motor speed calculator calculates the synchronous motor speed from the following parameters:

. For example, 50 Hz or 60 Hz.*f*-Supply frequency (*Hz*). For example, 2 or 4. This can be found on the nameplate of the motor..*p*-Number of poles

The motor speed in rpm is calculated as

\(n_{s} =2 \cdot 60\cdot \dfrac{f}{p}\)