Pevlika Browser Apps

Voltage Divider Calculator

Output voltage of a resistor divider — or the resistor you need.

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 Voltage Divider 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

Vout = Vin × R2 / (R1 + R2)

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