Binary to Hex Converter
Convert binary (base-2) numbers to hexadecimal (base-16) format instantly. Free online binary to hex converter with batch conversion support.
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Output
What is Binary to Hexadecimal Conversion?
Binary to hexadecimal conversion transforms numbers from base-2 (binary) to base-16 (hexadecimal) representation. Binary uses only digits 0 and 1, while hexadecimal uses digits 0-9 and letters A-F. Every four binary digits (bits) map to exactly one hexadecimal digit, a concept closely related to <a href="https://en.wikipedia.org/wiki/Binary-coded_decimal" target="_blank" rel="noopener">Binary-Coded Decimal (BCD)</a> encoding.
To convert binary to hex, group the binary digits into sets of four (from right to left), then replace each group with its hex equivalent. For example, binary 11111111 = 1111 1111 = F F = FF in hexadecimal. For a deeper understanding of how JavaScript handles these numeric representations, see the <a href="https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Numbers_and_dates" target="_blank" rel="noopener">MDN Numbers and dates guide</a>.
How to Use This Converter
Enter Binary Values
Type or paste your binary numbers in the input panel. Enter one number per line for batch conversion. The 0b prefix is optional.
Automatic Conversion
The converter automatically transforms each binary number to its hexadecimal equivalent in real time as you type.
Copy or Download Results
Use the Copy button to copy the hex results to your clipboard, or Download them as a text file.
Conversion Examples
Here are some common binary to hexadecimal conversions:
Binary Input
Hexadecimal Output
Frequently Asked Questions
Why is binary to hex conversion useful?
Hexadecimal is a compact way to represent binary data. Each hex digit represents exactly 4 binary bits, making it much easier to read and write large binary values such as memory addresses, color codes, and MAC addresses. You can explore this relationship further at Electronics Tutorials.
How do I group binary digits for hex conversion?
Group the binary digits into sets of 4 from right to left. Pad the leftmost group with leading zeros if needed. For example, 101010 becomes 0010 1010 = 2A.
What characters are used in hexadecimal?
Hexadecimal uses digits 0-9 for values 0-9 and letters A-F for values 10-15. Both uppercase and lowercase letters are valid. For a broader overview of binary and hex in computing, see Computer Hope's binary reference.
Can I convert multiple binary numbers at once?
Yes! Enter one binary number per line and the converter will process all of them simultaneously.
Related Tools
Learn more: MDN Bitwise operators reference, Tutorialspoint number conversion guide, and MDN Web Docs.