Number Base Converter

Converts a number between decimal, binary, octal, and hexadecimal all at once. Enter a plain decimal number, or prefix it with 0x (hex), 0b (binary), or 0o (octal) to convert from that base.

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Converts a number between decimal, binary, octal, and hexadecimal all at once. Enter a plain decimal number, or prefix it with 0x (hex), 0b (binary), or 0o (octal) to convert from that base.

Use cases

  • Converting a decimal number to binary for a computer science assignment
  • Reading a hex color or memory address as decimal

Examples

Plain decimal input

26
{"decimal": 26, "binary": "11010", "octal": "32", "hex": "1a"}

FAQ

Is my data sent to a server?

Yes — the calculation runs on the server for this tool.