Calculate/Convert Watts, Volts, Amps & Ohms - Electrical Usage Calculator

Fill any 2 of the fields. Click reset before a new calculation.

Watt is a unit of power, within electrical systems wattage corresponds to the amount of power that an electric device uses per a second.

Volt is a measurement of voltage, volts represent the electrical potential difference or pressure.

Ampere or amp is a measurement of electrical current, amps represent the rate at which electricity flows.

Ohms is a unit of electrical resistance, the greater the ohms the more difficult it is for current to flow.


Watts, Volts, Amps & Ohms Calculator Fill any 2 of the fields. Click reset before a new calculation. Power (watts): Voltage (volts): Current (amps): Resistance (ohms): Watt is a unit of power, within electrical systems wattage corresponds to the amount of power that an electric device uses per a second. Volt is a measurement of voltage, volts represent the electrical potential difference or pressure. Ampere or amp is a measurement of electrical current, amps represent the rate at which electricity flows. Ohms is a unit of electrical resistance, the greater the ohms the more difficult it is for current to flow.