Electrical Power Factor Calculator

Electrical
1 minute

Calculate the power factor (PF) of an AC electrical circuit

This online calculator enables you to calculate the power factor (PF) of an AC electrical circuit. The power factor is the ratio of the real power (in KW) to the reactive power (in KVAr) in the circuit.

Value of Real Power
KW
Reactive Power
KVAr
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    3 Number of calculations
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    Power\ factor = \frac{kW}{\sqrt{(kW)^2 + (kVAr)^2}}

    where,

    • kW = Real Power
    • kVAr = Reactive Power