Electric power can be defined as the rate that electricity, or electric energy, is tranfered by some type of electric circuit. Electric power is measured in terms of watts, per the International System of Units. After being transfered through electric circuits, electric power is then converted into some type of energy depending on the type of device that you are using.

With this basic electric power calculator, you can easily calculate how much power is running in an electrical system if you already know the voltage (V) and current (I) of the system. The output of this calcuation, electrical power (P), is measured in watts. This is a very basic science calculation which is usually taught in elementary school as it’s based on simple multiplication.

The basic formula for the electric power calculator can be seen in the formula box below. To use the calculator below, simply input the known current and volts of the electric system.