Induction Motor Slip Calculator

Slip speed is the speed difference between the Synchronous speed and Rotor speed.

Slip speed = Synchronous speed – Rotor speed = Ns -N.

Slip, s = (Ns – N) / Ns.


Synchronous Speed in r.p.m

Slip Speed = r.p.m

Percentage slip = %

Rotor Speed in r.p.m

Slip, S =

Refer: How to calculate the percentage slip of a 3Φ induction motor?