Hex Reference
0x2A in Binary = 00101010
Hex 0x2A converts to binary 00101010. Decimal: 42. Octal: 52. ASCII character: "*".
Quick Answer
Hex
2A
Binary
00101010
Decimal
42
Octal
52
ASCII Character
"*"
How to Convert 0x2A to Binary — Step by Step
1
Separate the two hex digits
0x2A = high nibble 2 + low nibble A
2
Convert each digit to 4 binary bits
Hex 2 = 0010 (decimal 2)
Hex A = 1010 (decimal 10)
3
Concatenate the 4-bit groups
0010 + 1010 = 00101010
0x2A in All Number Systems
| Hex (Base 16) | 2A (0x2A) |
| Binary (Base 2) | 00101010 (0010 1010) |
| Decimal (Base 10) | 42 |
| Octal (Base 8) | 52 |
| ASCII | "*" |
Convert Any Hex Value Instantly
Use the full converter with step-by-step math, ASCII table, and two's complement support.
Open Full Hex to Binary ConverterExplore Other Popular Converters
Binary to Decimal Binary to Hex Binary to Octal Binary to ASCII Negative Binary to Decimal Decimal to Binary Decimal to Hex Decimal to Octal Hex to Binary Hex to Decimal Hex to Octal Hex to ASCII Octal to Binary Octal to Decimal Octal to Hex ASCII to Binary ASCII to Hex ASCII to Decimal Binary Cheat Sheets