Watts Amps Volts Calculator

Convert or calculate to and from different electrical units, with single phase and three phase electrical calculations.

Totally free
Single phase calculations
Three phase calculations

Simple and fast electrical calculations on the go.

Optimised for iPad, iPhone, Android Phones and Android Tablets

Watts Amps Volts Single Phase Calculator

Single Phase Calculations

Home > 1 Phase

Enter any two values to calculate the third.

Calculate Watts.
Calculate Amps.
Calculate Volts.

Three Phase Calculations

Home > 3 Phase

Enter any three values to calculate the forth.

Calculate kW.
Calculate Amps.
Calculate Volts.
Calculate Power Factor.

The demo video may not reflect latest version of the app.

Demo video

Watts Amps Volts Calculator Three Phase Calculator

Upgrade to the pro version

As this application is free to download and free to use, to help towards covering the ongoing maintenance costs, we have had to include some in-app ads.

However, you can upgrade to our Electrical Tools and Reference app which includes many more calculators, tools and electrical tables used by many professional electricians on a daily basis – No ads!

Electrical Tools and Reference App

What people think about this app…

Very easy to use

Very simple and easy to use. Not being an electrician it really helps to find values.

A Google user

Android

Solar Calculator

This app has been very useful in setting up a solar array. I’m old school and could do the math myself to convert the current, but this app is faster and accurate leaving me the time to design panel racks and other mechanical issues. Could’ve used this years ago. Overall a very useful app for the novice and the pro!

Davijdd

iOS

Quick & Handy

I used this app while building a solar generation system, it was very useful when calculating consumption of appliances and other devices.

Bill Jensen

iOS

Summary of Features

Totally free
Single phase calculations
Three phase calculations
Calculate Watts
Calculate Amps
Calculate Voltage
Calculate kilowatts (kW)
Calculate Power Factor (PF)
Quick and easy to use

An electrical calculator for calculating Watts, Amps, Volts, kW and Power Factor.

Get the App

Download the Watts Amps Volts Calculator App to start your electrical calculations today.