Hex Reference
0x55 in Binary = 01010101
Hex 0x55 converts to binary 01010101. Decimal: 85. Octal: 125. ASCII character: "U".
Quick Answer
Hex
55
Binary
01010101
Decimal
85
Octal
125
ASCII Character
"U"
How to Convert 0x55 to Binary — Step by Step
1
Separate the two hex digits
0x55 = high nibble 5 + low nibble 5
2
Convert each digit to 4 binary bits
Hex 5 = 0101 (decimal 5)
Hex 5 = 0101 (decimal 5)
3
Concatenate the 4-bit groups
0101 + 0101 = 01010101
0x55 in All Number Systems
| Hex (Base 16) | 55 (0x55) |
| Binary (Base 2) | 01010101 (0101 0101) |
| Decimal (Base 10) | 85 |
| Octal (Base 8) | 125 |
| ASCII | "U" |
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