Ohm’s Law Calculator

Solve for voltage, current, resistance, or power — enter any two known values

Known Values — Enter Any Two

Voltage — V (volts)

Current — I (amps)

Resistance — R (ohms Ω)

Power — P (watts)

V = I × R | P = V × I
P = I² × R | P = V² ÷ R

Solved Values

Voltage

—V

Current

—

Resistance

—

Power

—

Enter any two values above to solve for the others.

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