Ohm's Law Calculator
Calculate voltage, current, or resistance using Ohm's Law
Calculator
Enter any two values to calculate the third using the formula V = I × R
Ohm's Law Formula
The fundamental relationship in electrical circuits
Basic Formulas:
V = I × R
I = V ÷ R
R = V ÷ I
Power Formulas:
P = V × I
P = I² × R
P = V² ÷ R
Ohm's Law is fundamental to understanding electronic circuits. Current is directly proportional to voltage and inversely proportional to resistance.
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Common questions and answers about this topic
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