Power Factor Calculator

Calculate power factor (PF), apparent power (kVA), and reactive power (kVAR) for single and three-phase circuits.

kW
V
A
Result
kW
V
A
Result
kW
V
A
Result

Formulas

  • PF = 1000×P(kW) / (V×I)
  • |S| (kVA) = V×I / 1000
  • Q (kVAR) = √(|S|² − P²)
  • 3-phase (L-L): PF = 1000×P / (√3×V×I)