⚙️ Ohm's Law Calculator

Calculate Voltage, Current, Resistance & Power.

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The Ohm's Law Triangle

Ohm's Law describes the relationship between Voltage, Current, and Resistance.
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V = I × R

V (Voltage) Measured in Volts. The electric pressure pushing electrons.
I (Current) Measured in Amps. The flow rate of electrons.
R (Resistance) Measured in Ohms (Ω). The opposition to current flow.