kVA to kW Calculator
Convert kVA to kW — or kW to kVA — using the power factor. kVA is apparent power and kW is real (working) power; the two are linked by kW = kVA × power factor. Common for sizing generators, transformers, and UPS systems.
kW = kVA × power factor. Use PF ≈ 1.0 for resistive loads (heaters), and 0.8 is a common default for motors and mixed loads — check the nameplate.
Real power
8 kW
- Apparent power
- 10 kVA
- Real power
- 8 kW
- Power factor
- 0.80
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This tool's methodology and data follow US standards and authoritative public datasets: