Number Base Converter
Number Base Converter
Convert any number between binary (base 2), octal (base 8), decimal (base 10), and hexadecimal (base 16) instantly.
Number Base Quick Reference
| Decimal | Binary | Octal | Hex |
|---|
| 0 | 0000 | 0 | 0 |
| 8 | 1000 | 10 | 8 |
| 10 | 1010 | 12 | A |
| 15 | 1111 | 17 | F |
| 16 | 0001 0000 | 20 | 10 |
| 255 | 1111 1111 | 377 | FF |
| 1024 | 0100 0000 0000 | 2000 | 400 |
Where Are These Bases Used?
- Binary (base 2) — the fundamental language of computers and digital electronics
- Octal (base 8) — Unix file permissions (e.g. chmod 755), older computing systems
- Decimal (base 10) — everyday human counting system
- Hexadecimal (base 16) — memory addresses, color codes (#FF5733), machine code