Construction / CALCULATOR

Single-Phase Apparent Load and Current

Single-Phase Apparent Load and Current with explicit measurements, assumptions and a worked example.

Runs on your deviceUpdates as you typeFormula & example ↓
01

Your inputs

Adjust the values to explore a different result.

W
Enter real power in W.
V
Enter rms voltage in V.
Enter power factor.

Formula

apparent VA=watts/PF; RMS amperes=VA/voltage.
  • Use the units shown beside each field.
  • Results update automatically whenever you change an input.
  • Displayed values use up to four decimal places, or scientific notation for very small or large numbers. Calculations use standard floating-point arithmetic; exact integer and fraction tools identify their own precision rules.
  • Steady single-phase load. Does not select conductors, breakers, protective devices or installation ratings.

Example Calculation

Example inputs
  • Real power: 2300 W
  • RMS voltage: 230 V
  • Power factor: 1

Real power = 2300 W; RMS voltage = 230 V; Power factor = 1. Primary result: 10.

Frequently asked questions

How do I use this calculator?

Enter real power, rms voltage, power factor. The result updates automatically. Use Reset to restore the example values.

What method does it use?

apparent VA=watts/PF; RMS amperes=VA/voltage.. Steady single-phase load. Does not select conductors, breakers, protective devices or installation ratings.

Why might a rounded result differ?

The calculation keeps full numeric precision internally, then rounds the displayed result. Rounding intermediate steps by hand can produce a slightly different answer.

Are my inputs saved online?

No. This calculator processes your inputs in your browser. A recently used list stores only calculator names on this device, not your entered values.

Check the assumptions and units before using this result. Read about calculation methods.