Amps to Kilowatts calculator

Select current type:	DC AC - Single phase AC - Three phase
Enter current in amps:		A
Select voltage type:	Line to line voltage Line to neutral voltage
Enter voltage in volts:		V
Enter power factor:
Power result in kilowatts:		kW

To convert amps to kilowatts the power formula can be used, which states that I = P ÷ E, given that P is the power in watts, I is current in amps, and E is voltage in volts.

DC amps to kilowatts calculation

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

P_(kW) = I_(A) × V_(V) / 1000

AC single phase amps to kilowatts calculation

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

P_(kW) = PF × I_(A) × V_(V) / 1000

AC three phase amps to kilowatts calculation

Calculation with line to line voltage

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

P_(kW) = √3 × PF × I_(A) × V_{L-L (V)} / 1000

Calculation with line to neutral voltage

The power P in kilowatts (kW) is equal to 3 times the power factor PF times the phase current I in amps (A), times the line to neutral RMS voltage V_L-N in volts (V) divided by 1000:

P_(kW) = 3 × PF × I_(A) × V_{L-N (V)} / 1000