Watts to kVA Calculator

Convert your device's power usage in Watts into kVA to determine required generator or transformer capacity.

kVA = Watts ÷ (1,000 × Power Factor)
2000W ÷ (1000 × 0.8) = 2.5 kVA

How do I convert watts to kVA?

To convert watts to kilovolt-amps (kVA), divide the power in watts by 1,000 times the power factor. Formula: kVA = Watts ÷ (1,000 × Power Factor).

What is kVA?

kVA stands for kilovolt-ampere. It is a unit of apparent power equal to 1,000 volt-amperes. It is used to specify the capacity of transformers and generators.

Why does the conversion depend on Power Factor?

Power factor represents the efficiency of the power usage. Because kVA measures the total power delivered (including wasted reactive power), a lower efficiency (lower PF) results in a higher kVA for the same wattage.