Enter the current in amps (A), voltage in volts (V), select power factor (PF) from 0 to 1 with a 0.1 step (for AC), then press the Calculate button to get the result in kilowatts (kW).
DC Amps to kW calculation
P(kW) =I(A) × V(V) / 1000
The power P in kilowatts (kW) is equal to the current I in amps (A), multiplied by the voltage V in volts (V), divided by 1000.
AC single phase Amps to kW calculation
P(kW) = PF × I(A) × V(V) / 1000
The real power P in kilowatts (kW) is equal to the power factor PF, multiplied by the phase current I in amps (A), multiplied by the RMS voltage V in volts (V), divided by 1000.
AC three phase Amps to kW calculation
Line to line voltage
P(kW) = √3 × PF × I(A) × VL-L (V) / 1000
The real power P in kilowatts (kW) is equal to square root of 3, multiplied by the power factor PF, multiplied by the phase current I in amps (A), multiplied by the line to line RMS voltage VL-L in volts (V), divided by 1000.
Line to neutral voltage
P(kW) = 3 × PF × I(A) × VL-N (V) / 1000
The real power P in kilowatts (kW) is equal to 3, multiplied by the power factor PF, multiplied by the phase current I in amps (A), multiplied by the line to neutral RMS voltage VL-N in volts (V), divided by 1000.