Kilowatts to amps calculator

Kilowatts (kW) to amps (A) calculator.

Select current type, enter power in kilowatts, voltage in volts, power factor for AC circuit and press the Calculate button (DC = Direct Current, AC = Alternating Current):

 Select current type: DC AC - Single phase AC - Three phase Enter power in kilowatts: kW Enter voltage in volts: V Current result in amps: A

Amps to kW calculator ►

DC kilowatts to amps calculation

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

I(A) = 1000 × P(kW) / V(V)

AC single phase kilowatts to amps calculation

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

I(A) = 1000 × P(kW) / (PF × V(V) )

AC three phase kilowatts to amps calculation

Calculation with line to line voltage

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

I(A) = 1000 × P(kW) / (3 × PF × VL-L(V) )

Calculation with line to neutral voltage

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

I(A) = 1000 × P(kW) / (3 × PF × VL-N(V) )

Typical power factor values

Do not use typical power factor values for accurate calculations.

Device Typical power factor
Fluorescent lamp 0.95
Incandescent lamp 1
Induction motor full load 0.85
Induction motor no load 0.35
Resistive oven 1
Synchronous motor 0.9

kW to amps calculation ►