Science & Engineering · Calculator
Ohm's Law Calculator
Calculate voltage, current, or resistance using Ohm's Law.
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Ohm's Law Calculator
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Enter any two of voltage, current, or resistance.
Formula
V = I × RStep-by-step
- V = I × R
- I = V / R
- R = V / I
Example
12V, 4Ω → 3A.
FAQ
What is Ohm's Law?+
V = I × R, relating voltage, current, and resistance.
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