Base Converter
Convert between Binary, Decimal, Hexadecimal, Octal & more number systems!
Invalid input for selected base!
FF
Hexadecimal (Base 16)
Conversion:
255 (Decimal) = FF (Hexadecimal)
Breakdown:
Common Conversions
Quick Reference (0-15)
| Decimal | Binary | Octal | Hex |
|---|---|---|---|
| 0 | 0000 | 0 | 0 |
| 1 | 0001 | 1 | 1 |
| 2 | 0010 | 2 | 2 |
| 3 | 0011 | 3 | 3 |
| 4 | 0100 | 4 | 4 |
| 5 | 0101 | 5 | 5 |
| 6 | 0110 | 6 | 6 |
| 7 | 0111 | 7 | 7 |
| 8 | 1000 | 10 | 8 |
| 9 | 1001 | 11 | 9 |
| 10 | 1010 | 12 | A |
| 11 | 1011 | 13 | B |
| 12 | 1100 | 14 | C |
| 13 | 1101 | 15 | D |
| 14 | 1110 | 16 | E |
| 15 | 1111 | 17 | F |
Number Base Guide
Binary (Base 2):
Only 0 and 1. Foundation of all computing. Each digit = 1 bit.
Octal (Base 8):
Digits 0-7. Used in Unix permissions (chmod 755, 644).
Decimal (Base 10):
Standard number system. What we use in daily life.
Hexadecimal (Base 16):
0-9 and A-F. Used in colors (#FF0000), memory addresses.