Kilowatts to Amps Calculator

Kilowatts (kW) to amps (A) calculator.

A
mA

Amps to kW calculator ►

* Use e for scientific notation. E.g: 5e3, 4e-8, 1.45e12

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
Resistive load 1
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

 

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See also

ELECTRICAL CALCULATORS
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