Ohm's Law Calculator | PES Supply

Ohm's Law Calculator

Calculate voltage, current, resistance, and power using Ohm's Law

Enter any two values — the calculator solves the rest:
Results
--

Ohm's Law Formulas

To Find Formula
Voltage V = I × R
Current I = V / R
Resistance R = V / I
Power P = V × I
Power (alt) P = I² × R
Power (alt) P = V² / R