Hex Reference
0xC9 in Binary = 11001001
Hex 0xC9 converts to binary 11001001. Decimal: 201. Octal: 311.
Quick Answer
Hex
C9
Binary
11001001
Decimal
201
Octal
311
How to Convert 0xC9 to Binary — Step by Step
1
Separate the two hex digits
0xC9 = high nibble C + low nibble 9
2
Convert each digit to 4 binary bits
Hex C = 1100 (decimal 12)
Hex 9 = 1001 (decimal 9)
3
Concatenate the 4-bit groups
1100 + 1001 = 11001001
0xC9 in All Number Systems
| Hex (Base 16) | C9 (0xC9) |
| Binary (Base 2) | 11001001 (1100 1001) |
| Decimal (Base 10) | 201 |
| Octal (Base 8) | 311 |
| ASCII | Non-printable |
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