Ohm's Law Calculator
Enter any two values. Leave the third blank to calculate it.
How to Use
- Enter any two of voltage, current, and resistance.
- Click Calculate.
- Get the missing value plus power (W).
FAQ
What is Ohmโs law?
V = I ร R.
How is power calculated?
P = V ร I (also equivalent to IยฒR or Vยฒ/R when values are available).
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