🧮 Ohms Law Calculator

Enter any 2 of Voltage/Current/Resistance/Power to calculate the remaining values.

Voltage (V)

Current (A)

Resistance (Ω)

Power (W)

Enter any 2 values to calculate the remaining 2.

Ohms Law Calculator

Ohm’s Law: V = I × R. Power: P = V × I. Enter any two known values to calculate the other two.

Formulas used

V=IR, P=VI, P=I²R, P=V²/R, I=P/V, R=V/I, I=V/R, V=P/I, R=P/I², V=√(PR), R=V²/P