kVA Calculator

Find apparent power in kilovolt-amperes.

Apparent power (kVA) 4.8

Formula: kVA = V·I ÷ 1000

Step-by-step with your numbers:

1. Values used:

2. Voltage = 240 V

3. Current = 20 A

5. Apparent power = 4.8kVA

Did we solve your problem today?

kVA measures apparent power, used to size transformers and generators.

The math behind it

Single-phase kVA = V·I ÷ 1000. It ignores power factor, unlike real power (kW).

240 V × 20 A → 4.8 kVA.

kVA vs kW?

kW = kVA × power factor; kVA is the total demand on the supply.