Ohm's Law states that the current through a conductor between two points is directly proportional to the voltage across the two points. Formula: V = IR.

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Ohm's Law Calculator

Calculate voltage, current, or resistance using Ohm's Law.

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Ohm's Law: V = IR

Ohm's Law is the most fundamental rule in electronics and electrical engineering. It describes the relationship between voltage, current, and resistance in an ideal conductor.

Voltage (V): Electrical potential difference (Volts).
Current (I): The flow of electric charge (Amperes).
Resistance (R): The opposition to current flow (Ohms).

By knowing any two of these values, you can calculate the third using our reverse solver.

Ohm's Law Calculator

Result

Ohm's Law: V = IR