Hex Reference
0xA1 in Binary = 10100001
Hex 0xA1 converts to binary 10100001. Decimal: 161. Octal: 241.
Quick Answer
Hex
A1
Binary
10100001
Decimal
161
Octal
241
How to Convert 0xA1 to Binary — Step by Step
1
Separate the two hex digits
0xA1 = high nibble A + low nibble 1
2
Convert each digit to 4 binary bits
Hex A = 1010 (decimal 10)
Hex 1 = 0001 (decimal 1)
3
Concatenate the 4-bit groups
1010 + 0001 = 10100001
0xA1 in All Number Systems
| Hex (Base 16) | A1 (0xA1) |
| Binary (Base 2) | 10100001 (1010 0001) |
| Decimal (Base 10) | 161 |
| Octal (Base 8) | 241 |
| ASCII | Non-printable |
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