Watts Amps Volts Calculator, developed by Pro Certs Software Ltd, is a free Android application that allows users to easily convert or calculate Watts, Amps, Voltage, kW, or Power Factor. The app includes a single phase electrical calculator and a three-phase calculator with helpful hints to guide you through the process. Simply enter any two values to calculate the third, or enter any three values to calculate the fourth.

The single-phase calculations include the ability to calculate Watts, Volts, and Amps, while the three-phase calculations include kW, Amps, Volts, and Power Factor. The app also provides the option to choose between single-phase and three-phase AC, with single-phase being the most common system used in homes and three-phase being used in commercial or industrial buildings with heavy loads of power. Overall, Watts Amps Volts Calculator is a great companion to Pro Certs Software Ltd's kVA Calculator and Ohms Law Calculator apps.