Pevlika Browser Apps

Ohm’s Law Calculator

Voltage, current, resistance and power from any two values.

Runs in your browser — nothing is uploaded

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For learning, hobby and prototyping use. Not professional electrical design advice — follow applicable codes and standards.

How to use Ohm’s Law Calculator

  1. Enter your values — the unit for each field is shown next to it.
  2. The result updates instantly as you type.
  3. Copy the results, or change inputs to compare scenarios.

Formula & assumptions

V = I × R

P = V × I = I²R = V²/R

  • Values accept engineering prefixes: 4.7k, 100n, 2M2, 10u.
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