Number System Converter - Binary Decimal Hex Octal

🔢 Numbers / Number Base Converter

Type a number in any field to instantly convert to all other bases.

Decimal (Base 10)

Digits: 0–9

Invalid decimal number

Binary (Base 2)

Digits: 0, 1

Invalid binary number

Hexadecimal (Base 16)

Digits: 0–9, A–F

Invalid hex number

Octal (Base 8)

Digits: 0–7

Invalid octal number

Base 32

Digits: 0–9, A–V

Base 36

Digits: 0–9, A–Z

Base 4 (Quaternary)

Digits: 0–3

Base 12 (Duodecimal)

Digits: 0–9, A, B

ASCII Value: — Character: —

Dec	Hex	Oct	Bin	Char

Decimal	Binary	Hex	Octal
0	0	0	0
1	1	1	1
8	1000	8	10
10	1010	A	12
15	1111	F	17
16	10000	10	20
32	100000	20	40
64	1000000	40	100
128	10000000	80	200
255	11111111	FF	377
256	100000000	100	400
1024	10000000000	400	2000
65535	1111111111111111	FFFF	177777