ClueLuma

Real power from apparent power and PF calculator

Real power is calculated as S × PF. Use the stated system boundary and matching input units.

P=S×PFP = S \times \mathrm{PF}

Calculator

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

kVA
—
kW

Worked example

Given

  • SS = 100 kVA
  • PF\mathrm{PF} = 0.8 —
P=100×0.8=80P = 100 \times 0.8 = 80

Symbols and units

SymbolMeaningUnit
PPreal powerkW
SSapparent powerkVA
PF\mathrm{PF}power factor—

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.