Single-Phase Power Calculator

How Single-Phase Power works

The result comes from P = V × I × PF. Single-Phase Power uses RMS voltage, Current, Power factor to report Real power. For wye phase voltage, use Line Phase Voltage Calculator.

With the loaded values, real power evaluates to 3,312.00 W. Keep other entries fixed when exploring a measurement range.

Inputs for Single-Phase Power

RMS voltage, Current, and Power factor belong to Single-Phase Power. Keep source units with rms voltage.

Treat the preset entries as an arithmetic example. Supply measurements or ratings from the actual circuit.

RMS voltage

Example entry: 230 V.

Current

Example entry: 16 A.

Power factor

Example entry: 0.9.

Reading the Single-Phase Power result

This output represents Single-Phase Power.

Standard size, duty, temperature, and transient checks remain outside this single equation. Compare this result with Peak-to-Peak Voltage Calculator when peak voltage is also needed.

Measurement and units

Use RMS quantities unless a field explicitly asks for peak amplitude. Check prefixes on rms voltage. If the next question concerns impedance magnitude, open Parallel RLC Impedance Calculator.

Keep the same electrical reference points across saved cases.

Limits of this calculation

Waveform distortion can require true-power measurement.

The arithmetic is intentionally narrower than a complete circuit model. Unentered effects remain outside Single-Phase Power.

A useful Single-Phase Power comparison

Save the initial real power before adjusting rMS voltage. A low and high case is more informative than adding an unexplained safety factor after the calculation.

Document the alternate rms voltage source. Use Power Factor Correction Calculator as the follow-up for required capacitor reactive power.

Questions about Single-Phase Power