Watts to Kilovolt-Amps (kVA) Conversion Calculator

Enter the watts and the power factor below to convert to kVA.


Kilovolt-Amps Results:

Learn how we calculated this below

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How to Convert Watts to kVA

Watts and kilovolt-amps (kVA) are both measures of power. Watts measure real power while kVA measures apparent power.

In most cases, there will be some amount of apparent power that does no real work and is thus not real power. This is represented by the power factor, which is a measure of the efficiency of the circuit.

Convert watts to kVA using the power factor and this formula:

S(kVA) = P(W) / 1,000 × PF

So, the apparent power S in kVA is equal to the real power P in watts divided by 1,000 times the power factor PF.

For example, let’s convert 4,800 watts to kVA given a power factor of 0.8.

S(kVA) = 4,800 W / 1,000 × 0.8
S(kVA) = 6 kVA

You might also find our kW to kVA conversion calculator.