Ohm's Law Calculator
Calculate voltage, current or resistance using Ohm's law.
Calculate voltage, current or resistance using Ohm's law.
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Open calculatorOhm's Law Calculator is an educational physics tool that applies standard introductory relationships using validated numerical inputs.
Enter the required values in the displayed SI units. The calculator validates the mathematical domain and applies V = I × R; I = V ÷ R; R = V ÷ I.
Variables: V = Voltage (V); I = Current (A); R = Resistance (Ω).
Example: I = 2 A, R = 6 Ω → V = 12 V.
It is intended for studying formulas, checking exercises, and exploring how changing physical quantities affects the calculated result.
Use the units shown beside each input. These calculators are designed around the displayed SI units unless a field explicitly states otherwise.
These sources are used to verify terminology, formulas, and information related to this calculator.