In mathematics and computing, hexadecimal (also base 16, or hex) is a positional numeral system with a radix, or base, of 16. It uses sixteen distinct symbols, most often the symbols 0–9 to represent values zero to nine, and A, B, C, D, E, F (or alternatively a, b, c, d, e, f) to represent values ten to fifteen.
conversion table
| hexadecimal (base 16) | base 2 | hexadecimal (base 16) | base 2 |
|---|
| 1 | ≈ 1 | b | ≈ 1011 |
| 2 | ≈ 10 | c | ≈ 1100 |
| 3 | ≈ 11 | d | ≈ 1101 |
| 4 | ≈ 100 | e | ≈ 1110 |
| 5 | ≈ 101 | f | ≈ 1111 |
| 6 | ≈ 110 | 10 | ≈ 10000 |
| 7 | ≈ 111 | 11 | ≈ 10001 |
| 8 | ≈ 1000 | 12 | ≈ 10010 |
| 9 | ≈ 1001 | 13 | ≈ 10011 |
| a | ≈ 1010 | 14 | ≈ 10100 |