MW, MVAR, MVA, and Power Factor Solver

Select Known Values

Relationships

MVA² = MW² + MVAR²

PF = MW ÷ MVA

φ = cos^-1(PF)

Lagging reactive power is displayed as positive MVAR; leading reactive power is displayed as negative MVAR.

Example

An 80 MW load with 60 MVAR of lagging reactive power has 100 MVA apparent power, 0.80 power factor, and a 36.87° phase angle.

Assumptions

This tool uses the fundamental-frequency power triangle. Distorted waveforms can require true power factor and harmonic quantities beyond displacement power factor.

MVAR sign conventions vary among utilities and software. Confirm the convention used by the system study or operating display.

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