Hi,
Don't forget the efficiency of the motor. You are dealing with a small motor which will have en effciency probably between 70% and 80% depending on the speed and quality of the motor so the power consumed will be typically 120% to 125% of the output power. Use the motor mameplate data to determine the input (consumed) power
Pinput = 1.732 x line volts x Irated x Power factor (cos phi) – assuming a 3 phase motor
alternatively
Pinput = Shaft power / Effeiciency