Ohm's Law Calculator
Calculate voltage, current, or resistance using Ohm's Law (V=IR).
Calculator Inputs
Results
The calculated value is:
12 V
V = I × R
Understanding Ohm's Law
This calculator allows you to easily solve for any one of the three variables in Ohm's Law. Simply select the value you wish to calculate, and enter the other two known values. The result will be calculated and updated automatically.
Frequently Asked Questions
What is Ohm's Law?
Ohm's Law is a fundamental principle in electronics stating that the current through a conductor between two points is directly proportional to the voltage across the two points. It's expressed as V = I × R, where V is voltage, I is current, and R is resistance.
What are the units used in this calculator?
The calculator uses standard SI units: Volts (V) for voltage, Amperes (A) for current, and Ohms (Ω) for resistance.