Number Base Converter
Convert numbers between binary, octal, decimal, hexadecimal, and any base from 2 to 36. Exact for numbers of any size. Free online base converter.
Type in any field. Every other base updates instantly, with exact results for numbers of any size.
8 bits
Frequently asked questions
How large a number can I convert?
Any size. The converter uses arbitrary-precision integers, so results stay exact.
Can I paste values with 0x or 0b prefixes?
Yes. Prefixes, spaces, and underscores are ignored when reading input.
Does it support negative numbers?
Yes, with a leading minus sign. Two's complement is not applied.