Watts Amps Volts Calculator

Watts Amps Volts Calculator is an easy to use electrical power calculator for converting or calculating to or from Watts, Amps, Voltage, kW or Power Factor.

Calculations also include a single phase electrical calculator and a three phase calculator with some helpful hints along the way.

Single Phase Calculations.
Enter any two values to calculate the third.
- Calculate Watts
- Calculate Volts
- Calculate Amps

Three Phase Calculations.
Enter any three values to calculate the fourth.
- Calculate kW
- Calculate Amps
- Calculate Volts
- Power Factor

Single Phase AC or Three Phase AC?
Single-phase is the most common system and is mainly used in homes, while a three-phase system is common in industrial or commercial buildings, where heavy loads of power are required.

This app is a great companion to our kVA Calculator and Ohms Law Calculator apps.