Number Base Converter

Convert between decimal, binary, hexadecimal, and octal number systems in real-time

Decimal (10)

Binary (2)

Hexadecimal (16)

Octal (8)

Quick Reference

Decimal	Binary	Hex	Octal
0	0	0	0
1	1	1	1
2	10	2	2
3	11	3	3
4	100	4	4
5	101	5	5
6	110	6	6
7	111	7	7
8	1000	8	10
9	1001	9	11
10	1010	A	12
15	1111	F	17
16	10000	10	20
31	11111	1F	37
32	100000	20	40
63	111111	3F	77
64	1000000	40	100
127	1111111	7F	177
128	10000000	80	200
255	11111111	FF	377