Binary to Hex Conversion
Why Binary to Hex?
Binary (base-2) is how computers store data, but long binary strings are hard to read. Hexadecimal provides a compact representation: each hex digit represents exactly 4 binary bits.
Conversion Process
Binary: 11010110 10101111
↓ Group into 4-bit chunks
1101 0110 1010 1111
↓ Convert each group to hex
D 6 A F
Result: 0xD6AF
Binary to Hex Conversion Table
| Binary | Hex | Decimal |
|---|---|---|
| 0000 | 0 | 0 |
| 0001 | 1 | 1 |
| 0010 | 2 | 2 |
| 0011 | 3 | 3 |
| 0100 | 4 | 4 |
| 0101 | 5 | 5 |
| 0110 | 6 | 6 |
| 0111 | 7 | 7 |
| 1000 | 8 | 8 |
| 1001 | 9 | 9 |
| 1010 | A | 10 |
| 1011 | B | 11 |
| 1100 | C | 12 |
| 1101 | D | 13 |
| 1110 | E | 14 |
| 1111 | F | 15 |
Hex to Binary (Reverse Process)
Hex: 0x3F2
↓ Convert each hex digit to 4 bits
3 F 2
↓
0011 1111 0010
Result: 001111110010
Practical Applications
- Memory Dumps: Binary memory displayed as hex for readability
- Bit Masks: 0xFF (11111111) represents all bits set
- Network Packets: Binary data encoded in hex for analysis
- File Formats: Binary file signatures shown as hex (e.g., PNG: 89 50 4E 47)
💡 Quick Trick
Memorize the table above! Once you know it, conversion becomes instant. Common values like 0x0F (00001111) and 0xF0 (11110000) appear frequently in programming.
Working with Larger Values
For longer binary strings, pad with leading zeros to make groups of 4:
Binary: 110101 (6 bits)
↓ Pad to 8 bits
00110101
↓ Group and convert
0011 0101
3 5
Result: 0x35
Tools for Conversion
Use our hex decoder tool alongside these resources:
- Binary Converter - Instant binary ↔ hex conversion
- Hex Calculator - Perform arithmetic in hex
- Bitwise Calculator - AND, OR, XOR operations