Electrical and engineering calculators
Electrical power calculator
Estimate real power from voltage, current, power factor and phase.
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How it works
Uses V × I × power factor for single-phase, or √3 × line voltage × current × power factor for balanced three-phase. Verify equipment ratings and local electrical requirements.
Example
230 V, 10 A at PF 0.9 is approximately 2.07 kW single-phase.