Hex Reference
0x42 in Binary = 01000010
Hex 0x42 converts to binary 01000010. Decimal: 66. Octal: 102. ASCII character: "B".
Quick Answer
Hex
42
Binary
01000010
Decimal
66
Octal
102
ASCII Character
"B"
How to Convert 0x42 to Binary — Step by Step
1
Separate the two hex digits
0x42 = high nibble 4 + low nibble 2
2
Convert each digit to 4 binary bits
Hex 4 = 0100 (decimal 4)
Hex 2 = 0010 (decimal 2)
3
Concatenate the 4-bit groups
0100 + 0010 = 01000010
0x42 in All Number Systems
| Hex (Base 16) | 42 (0x42) |
| Binary (Base 2) | 01000010 (0100 0010) |
| Decimal (Base 10) | 66 |
| Octal (Base 8) | 102 |
| ASCII | "B" |
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