Volts to Ohms calculator

Volts to ohms calculation with amps

Enter the voltage in volts (V), current in amps (A), then press the Calculate button to get the result in ohms (Ω).

R_(Ω) = V_(V) / I_(A)

The resistance R in ohms (Ω) is equal to the voltage V in volts (V), divided by the current I in amps (A).

Volts to ohms calculation with watts

Enter the voltage in volts (V), power in watts (W), then press the Calculate button to get the result in ohms (Ω).

R_(Ω) = V²_(V) / P_(W)

So the resistance R in ohms (Ω) is equal to the square value of voltage V in volts (V), divided by the power P in watts (W).