Hex Reference
0x3F in Binary = 00111111
Hex 0x3F converts to binary 00111111. Decimal: 63. Octal: 77. ASCII character: "?".
Quick Answer
Hex
3F
Binary
00111111
Decimal
63
Octal
77
ASCII Character
"?"
How to Convert 0x3F to Binary — Step by Step
1
Separate the two hex digits
0x3F = high nibble 3 + low nibble F
2
Convert each digit to 4 binary bits
Hex 3 = 0011 (decimal 3)
Hex F = 1111 (decimal 15)
3
Concatenate the 4-bit groups
0011 + 1111 = 00111111
0x3F in All Number Systems
| Hex (Base 16) | 3F (0x3F) |
| Binary (Base 2) | 00111111 (0011 1111) |
| Decimal (Base 10) | 63 |
| Octal (Base 8) | 77 |
| ASCII | "?" |
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