# Conversion - Watts, Amps, Voltage

Calculations of volts, amps, watts, and power are easily explained using Ohms Law. Ohms Law is the relationship of any DC circuit. Use the image on the right displays the relationships.

Available To Use Now: Ohms Law Calculator

The calculations are simple. The main to consider when calculating is if the measurements that you are using are all in the correct formats. The Ohms Law Calculator we provided will help you with that. The decimal being in the wrong place during a conversion could cause issues in your results or even in your equipment and or device that you are applying it to. Always double check your work.

#### Converting Watts to Amps - If you know Watts and Volts

The conversion of Watts to Amps is governed by the equation Amps = Watts/Volts (I = W/V)

Example: 10W/5V = 2A

#### Converting Watts to Volts - If you know Watts and Amps

The conversion of Watts to Volts is governed by the equation Volts = Watts/Amps (V = W/I)

Example: 100W/10A = 10V

Example: 48W/12A = 4V

#### Converting Amps to Watts - If you know Amps and Volts

The conversion of Amps to Watts is governed by the equation Watts = Amps x Volts (W = I · V)

Example: 1A * 110V = 110W

#### Converting Amps to Volts - If you know Volts and Wattage is fixed

The conversion of Amps to Volts is governed by the equation Amps = Watts/Volts (I = W/V)

Example: 48W / 12A = 4V

#### Converting Volts to Watts - If you know Amps and Watts

The conversion of Volts to Watts is governed by the equation Watts = Amps x Volts (V = W/I)

Example: 1.5A * 12V = 18W

#### Converting Volts to Amps- If you know Volts and Wattage is fixed

The conversion of Volts to Amps is governed by the equation Volts = Watts/Amps (V = W/I)

Example: 120W/110V = 1.09A

Legend