Calculate voltage, current, or resistance in a circuit using Ohm's law. This fundamental relationship governs the behavior of linear resistive circuits.
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Leave blank to solve for voltage.
Leave blank to solve for current.
Leave blank to solve for resistance.
How this calculator works
Ohm's law states that voltage V across a conductor is directly proportional to current I flowing through it, with resistance R as the constant of proportionality.
Common questions about this calculator
These calculators are for educational and informational purposes only. While we strive for accuracy, results should be verified for critical applications. Always consult authoritative sources for engineering or scientific work.
