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Convert

Reactive Power & Power Factor Calculator

Convert kVA to real kW and reactive kVAR for motor and driver loads—plan inverter and conductor sizing.

WattQuick

Motors often 0.7–0.9; resistive loads near 1.0

Reactive power

6.32kVAR

10.2 kW real · 12 kVA · φ 31.8°

Save Report: Download a PDF via JoinMyPDF or add this run to a project for a combined export.

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About Reactive Power & Power Factor Calculator

Real, apparent, and reactive power

kW = kVA × PF. Reactive power kVAR = √(kVA² − kW²). Poor power factor increases current without delivering useful work.

Sizing with reactive load

Inverter and breaker ratings must cover apparent power (kVA), not just real watts. Include reactive kVAR in project BOM when quoting AC distribution.

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