Number Base Converter
Convert between binary, octal, decimal, and hexadecimal.
Base Converter
Enter a number in any base to convert to all other bases.
0b
0o
0x
Common Values
Dec
Bin
Oct
Hex
0
0
0
0
1
1
1
1
8
1000
10
8
10
1010
12
A
16
10000
20
10
32
100000
40
20
64
1000000
100
40
128
10000000
200
80
255
11111111
377
FF
256
100000000
400
100
1024
10000000000
2000
400
All conversions are performed locally. Supports integers up to JavaScript's safe integer limit (2^53 - 1).