ClueLuma

Apparent power calculator

Combine real and reactive components by a power triangle under sinusoidal conditions, or use real power divided by PF.

kVA=kW2+kVAR2\mathrm{kVA} = \sqrt{\mathrm{kW}^{2} + \mathrm{kVAR}^{2}}

Calculator

Enter the values you know and leave one box empty. Calculate finds the empty one, the result or any input.

kW
kVAR
kVA

Worked example

Given

  • kW\mathrm{kW} = 320 kW
  • kVAR\mathrm{kVAR} = 240 kVAR
kVA=3202+2402=400\mathrm{kVA} = \sqrt{{320}^{2} + {240}^{2}} = 400

Symbols and units

SymbolMeaningUnit
kVA\mathrm{kVA}apparent powerkVA
kW\mathrm{kW}real powerkW
kVAR\mathrm{kVAR}reactive powerkVAR

Related calculators

Results are estimates for study and screening. Check the inputs, units and assumptions before you use them for design, billing or contract decisions.