Binary ⇄ Hex
Convert between binary and hexadecimal notation. Handles any length input and groups binary output into nibbles (4-bit groups) for readability.
How to use the binary ⇄ hex
Group binary into nibbles (4 bits) for hex conversion.
Formula & explanation
Each hex digit corresponds to 4 binary digits.
Examples
1111 1111 = FF. 1010 0011 = A3.
Frequently asked questions
- How do I convert binary to hex manually?
- Split the binary number into groups of 4 bits from the right, then convert each group to its hex digit. For example, 1010 0011 becomes A3.
- Why is binary-to-hex conversion so common in programming?
- Hex is a compact shorthand for binary: one hex digit represents exactly 4 bits. Programmers use it to read raw memory, color values, and byte-level data without dealing with long strings of 0s and 1s.
- What if my binary number isn't a multiple of 4 bits?
- Pad with leading zeros on the left until the total length is a multiple of 4. For example, 101 becomes 0101 = 5 in hex.
- Can I convert hex back to binary with this tool?
- This tool converts in one direction (binary to hex). For hex to binary, use the Hex to Decimal or Number Base Converter tool.
Related number & code tools
- Hex ⇄ DecimalConvert between hexadecimal and decimal numbers. Supports uppercase and lowercase hex input — useful for color codes, memory addresses, and network protocols.
- Binary ⇄ DecimalConvert between binary and decimal numbers in both directions. Supports signed integers and shows the step-by-step positional value breakdown for each conversion.
- Number Base ConverterConvert any number between any two bases from 2 (binary) to 36. Enter the source base, target base, and number — ideal for computer science and custom encoding schemes.
- Octal ⇄ DecimalConvert between octal (base 8) and decimal (base 10). Useful for Unix file permissions, legacy computing, and programming exercises involving number systems.
- BCD ConverterConvert decimal numbers to Binary-Coded Decimal (BCD) and back. Shows the 4-bit group encoding for each decimal digit — useful for electronics and embedded systems.
- ASCII ConverterConvert text to ASCII character codes and ASCII codes back to text. Shows decimal, hexadecimal, and binary representations for each character simultaneously.