How to convert VA to kW

How to convert apparent power in volt-amps (VA) to real power in kilowatts (kW).

Volt-amps to kW calculation formula

The real power P in kilowatts (kW) is equal to the apparent power S in volt-amps (VA), times the power factor PF divided by 1000:

P(kW) =  S(VA) × PF / 1000


So kilowatts are equal to volt-amps times the power factor divided by 1000.

kilowatts = volt-amps × PF / 1000


kW = VA × PF / 1000


What is the real power in kilowatts when the apparent power is 3000 VA and the power factor is 0.8?


P = 3000VA × 0.8 / 1000 = 2.4kW


How to convert kW to VA ►


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