How to use the Reactive Power & Power Factor Calculator
The Formula
kW = kVA × PF. Reactive power kVAR = √(kVA² − kW²). Poor power factor increases current without delivering useful work.
Practical Example
Inverter and breaker ratings must cover apparent power (kVA), not just real watts. Include reactive kVAR in project BOM when quoting AC distribution.
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.