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Hex Converter

Convert hexadecimal to decimal, binary or octal - and back.

How to use

  1. Paste a hex value like ff or 0x1A3.
  2. Pick the base to convert to.
  3. Copy the result - all four bases are shown.

Frequently asked questions

What are hex digits?

0-9 then A-F, where A=10 through F=15. Each digit is 4 bits, so FF = 255 = one full byte.

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