Three Phase Power Calculator
Real (kW), apparent (kVA) and reactive (kVAr) power of a three-phase load.
Inputs
V
A
Results
- Real power
- 18.84 kW
- Apparent power
- 22.17 kVA
- Reactive power
- 11.68 kVAr
- Equivalent
- 25.27 hp
Formula
kVA = √3 × V × I ÷ 1000
kW = kVA × PF
kVAr = √(kVA² − kW²)
Assumptions & limits
- Balanced three-phase load.
Worked example
√3 × 400 × 32 = 22.17 kVA × 0.85 = 18.84 kW.