Electrical Formulae

Watts = Volts X Amps

Watts = Resistance (in Ohms) X Amps²

Watts = Volts² ÷ Resistance (in Ohms)

Amps = Volts ÷ Ohms

Amps = Watts ÷ Volts

Amps = √Volts ÷ Ohms (Square root of Volts ÷ Ohms)

Volts = Amps ÷ Ohms

Volts = √Watts X Ohms (Square root of Watts X Ohms)

Volts = Watts ÷ Amps

Ohms = Watts ÷ Amps²

Ohms = Volts ÷ Amps

Ohms = Volts² ÷ Watts