Power Factor Calculator

How efficiently is your power being used? Check power factor, find reactive power, and see if correction pays off.

What is power factor?
PF = real power (kW) ÷ apparent power (kVA).

A PF of 1 means all power does useful work. Inductive loads — motors, transformers, ballasts — pull it down, and low PF can trigger utility penalties.

🏁 Two methods

kW/kVA or V&Aplusmn;A measurements.

📈 Live gauge

Visual position on the 0–1 scale.

🔁 Reactive power

kVAR needed for correction sizing.

💰 Penalty warning

Flags the level where utilities charge.

More electrical tools

Power, current, and efficiency in one place.

Amps to kW → kW to Amps Electricity Cost

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