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number base convert binary hex octal decimal

Number Base Converter (2 / 8 / 10 / 16)

Convert numbers between binary, octal, decimal, and hexadecimal. Select the input base, paste the number, and all four representations are shown at once.

USAGE

3 simple steps

  1. 1Select the base of your input number (2, 8, 10, or 16)
  2. 2Enter the number to convert
  3. 3Click Convert to see all four representations

FAQ

Frequently Asked Questions

Q. Can I use uppercase or lowercase for hex input?

A. Yes. The 0x prefix is not required — enter FF or ff directly.

Q. Are negative numbers supported?

A. Only non-negative integers are supported at this time.

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