Number Base Converter help

Read a number in any base and see it in every common base plus a signed/unsigned view. Big integers are exact.

Steps

  1. Type a value and pick its input base. Prefixes 0x, 0o, 0b and a leading minus are understood; spaces and underscores are ignored.
  2. The binary, octal, decimal, and hex forms appear, plus a base you choose from 2 to 36.
  3. Pick a bit width for the two's-complement panel: it shows the unsigned and signed values, hex, and the full bit pattern.

Notes

Everything runs in your browser. Nothing you enter or drop is uploaded.

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