The power P in kilowatts (kW) is equal to the voltage V in volts (V) times the current I in amps divided by 1000:

P_{(kW)} = V_{(V)} * I_{(A)} / 1000

AC Single Phase Volts to Kilowatts calculation

The power P in kilowatts (kW) is equal to the power factor PF times the current I in amps (A) times the voltage V in volts (V) divided by 1000:

P_{(kW)} = PF * I_{(A)} * V_{(V)} / 1000

AC Three Phase Volts to Kilowatts calculation

The power P in kilowatts (kW) is equal to the square root of 3 times the power factor PF times the current I in amps (A) times the line to line RMS voltage V_{L-L} in volts (V) divided by 1000: