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Number Base Converter

Enter a number in any base — binary, octal, decimal, or hexadecimal — to see it converted to all the others at once.

How to use this tool

  1. 1Select the base of the number you're entering.
  2. 2Type the number.
  3. 3Its equivalent in the other three bases appears instantly.

Frequently asked questions

What bases are supported?+

Binary (base 2), octal (base 8), decimal (base 10), and hexadecimal (base 16).

Is there a limit on how large a number I can convert?+

Numbers are handled as JavaScript BigInt, so very large integers convert correctly without precision loss.

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