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Electrical Motor Calculator: Power, Efficiency & Torque Calculations

Calculate amps, hp and kVA for electrical motors.

The calculators below can be used to calculate electric motor amps, horsepower and 3-phase kVa.

electric motor

Calculate Current (amps)

Calculate Power (horsepower)

Calculate 3 Phase Apparent Power (kVA)

  • RLA - "Running Load Amps" - current drawn during normal operation of electric motor.
  • FLA - "Full Load Amps" - amount of current drawn when full-load torque and horsepower is reached for the motor. FLA is usually determined in laboratory tests. Note! - in the calculator above FLA is RLA + 25% .
  • 1 hp = 0.745 kW

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