Number Base Converter

Convert numbers between binary, octal, decimal, hex and any base from 2 to 36 — even huge ones.

Binary (2)1111 1111
Octal (8)377
Decimal (10)255
Hexadecimal (16)FF
Base 32 (32)7v
Base 36 (36)73
Decimal (grouped)255
Base 513
Bit length8 bits · 1 bytes

Two’s complement

Bits0000 0000 0000 0000 0000 0000 1111 1111
Hex0x000000FF
As signed255
As unsigned255