Number Base Converter
Convert numbers between binary, octal, decimal, and hexadecimal instantly.
BinaryBase 2
0b
OctalBase 8
0o
DecimalBase 10
HexadecimalBase 16
0x
Bit Visualization
8-bit
1
1
1
1
1
1
1
1
Decimal: 255Signed 8-bit: -1Bits needed: 8Even/Odd: Odd
Quick Reference
| Dec | Hex | Oct | Bin |
|---|---|---|---|
| 0 | 0 | 0 | 0 |
| 1 | 1 | 1 | 1 |
| 2 | 2 | 2 | 10 |
| 4 | 4 | 4 | 100 |
| 8 | 8 | 10 | 1000 |
| 10 | A | 12 | 1010 |
| 15 | F | 17 | 1111 |
| 16 | 10 | 20 | 10000 |
| 32 | 20 | 40 | 100000 |
| 64 | 40 | 100 | 1000000 |
| 127 | 7F | 177 | 1111111 |
| 128 | 80 | 200 | 10000000 |
| 255 | FF | 377 | 11111111 |