Number Base Converter

Convert between binary, octal, decimal, and hexadecimal. Edit any field to update the rest.

Binary (Base 2)chars: 01

Octal (Base 8)chars: 0-7

Decimal (Base 10)chars: 0-9

Hexadecimal (Base 16)chars: 0-9, A-F

Common values reference

Decimal	Binary	Hex	Octal
0	0	0	0
1	1	1	1
2	10	2	2
4	100	4	4
8	1000	8	10
15	1111	F	17
16	10000	10	20
32	100000	20	40
64	1000000	40	100
127	1111111	7F	177
128	10000000	80	200
255	11111111	FF	377

About Number Base Converter

Edit any field and all others update instantly. Binary (base 2), octal (base 8), decimal (base 10), and hexadecimal (base 16) are the number systems used most in computing and electronics.