Hexadecimal (Base 16)
Uses digits 0-9 and letters A-F (where A=10, B=11, C=12, D=13, E=14, F=15). Commonly used in computing for memory addresses and color codes.
Example: 1A3F in hex = 6719 in decimal
Perform arithmetic operations and conversions with hexadecimal, decimal, binary, and octal numbers.
Uses digits 0-9 and letters A-F (where A=10, B=11, C=12, D=13, E=14, F=15). Commonly used in computing for memory addresses and color codes.
Example: 1A3F in hex = 6719 in decimal
The standard number system used in everyday counting, with digits 0-9.
Example: 255 in decimal = FF in hex
Uses only digits 0 and 1. The fundamental language of computers and digital systems.
Example: 11111111 in binary = 255 in decimal = FF in hex
Uses digits 0-7. Historically used in computing, still used in Unix file permissions.
Example: 377 in octal = 255 in decimal = FF in hex
| Decimal | Hexadecimal | Binary | Octal |
|---|---|---|---|
| 0 | 0 | 0 | 0 |
| 15 | F | 1111 | 17 |
| 16 | 10 | 10000 | 20 |
| 255 | FF | 11111111 | 377 |
| 256 | 100 | 100000000 | 400 |
| 4095 | FFF | 111111111111 | 7777 |