Pevlika

Number Base Converter

Type a number in any box and all the others update. Works with integers of any size.

Runs in your browser — nothing is uploaded

How to use Number Base Converter

  1. Type into any of the boxes.
  2. Read the value in every other base.
  3. Use the custom base for anything from 2 to 36.

Questions

Does it handle huge numbers?

Yes. It uses arbitrary-precision integers (BigInt), so 64-bit and larger values convert exactly.

Are negative numbers supported?

Yes, with a leading minus sign. Fractions are not supported.

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