Number Base Converter
Runs in your browserConvert between binary, octal, decimal, hexadecimal and any base up to 36, with exact arithmetic for values too large for a normal number.
Read as
In every common base
- Binary1111 1111
- Octal377
- Decimal255
- Hexadecimalff
About this number
- Bits needed
- 8
- Bytes
- 1
- Fits in
- unsigned 8 bit
- As bytes
- 255 B
- As a character
- ÿ (U+00FF)
Arithmetic uses arbitrary precision, so a 64 bit value stays exact rather than losing its last digits.