A method (100) for estimating a speed of an induction motor includes applying (102) a voltage to the induction motor and measuring (104) a current of the induction motor. A current fast fourier transform (FFT) of the current is then determined (106) and a slip of the induction motor is calculated (108) based on the current FFT. A speed of the induction motor is then estimated (110) based on the slip of the induction motor.
