Ohm's Law Calculator

Voltage (V):

Current (I in Amps):

Resistance (R in Ohms):

What is Ohm's Law?
Ohm’s Law is a fundamental principle in electronics and physics that relates Voltage (V), Current (I), and Resistance (R) with the formula:
V = I × R.
This calculator helps you easily compute one value if you have the other two. Whether you're a student or professional engineer, it's a quick tool to verify your results and improve your designs.