Binary ↔ Hexadecimal Converter
Free online binary to hex and hex to binary converter. Convert between base-2 and base-16 instantly.
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Tip: Each hex digit maps to exactly 4 binary bits. Try 1111 = F, 1010 = A.
💡 Definition
Binary ↔ Hex Relationship
- Hexadecimal is a compact representation of binary.
- Every 4 binary digits (a nibble) map to exactly one hex digit.
- This makes hex the preferred shorthand for binary data in computing.
📖 How to use
Step by Step
- Enter binary (0s and 1s) on the left
- Hex equivalent appears on the right
- Or enter hex to see binary
- Click ⇄ to swap values
🎯 Use cases
When to use
- Reading memory dumps and hex editors
- Network packet analysis
- Embedded systems programming
- Understanding color codes (RGB binary → hex)
Frequently Asked Questions
How do you convert binary to hex manually?▾
Group binary digits into sets of 4 from right to left, then convert each group. Example: 1101 0101 → D5. If the leftmost group has fewer than 4 digits, pad with leading zeros.
Why is binary to hex so clean?▾
Because 16 is a power of 2 (2⁴ = 16), each hex digit perfectly represents 4 bits. This mathematical relationship makes conversion simple and lossless.