Binary to Hexadecimal Converter
Convert binary (base-2) numbers to hexadecimal (base-16).
Try an example:
- Binary (2)
11111111- Octal (8)
377- Decimal (10)
255- Hexadecimal (16)
ff
Converting Binary to Hexadecimal
Because 16 equals 2 to the 4th power, each hex digit maps to exactly four binary bits, so this conversion is a simple regrouping.
How to convert Binary to Hexadecimal by hand
- Split the binary number into groups of four bits, starting from the right.
- Pad the leftmost group with leading zeros if needed.
- Convert each 4-bit group to its hex digit (0000 = 0 … 1111 = F).
Worked example
11111111 (binary) → FF (hex) — 1111 = F and 1111 = F, giving FF.
More converters
- Decimal to Binary
- Binary to Decimal
- Decimal to Hexadecimal
- Hexadecimal to Decimal
- Hexadecimal to Binary
- Decimal to Octal
Frequently asked questions
How do I convert Binary to Hexadecimal?
Split the binary number into groups of four bits, starting from the right. Pad the leftmost group with leading zeros if needed. Convert each 4-bit group to its hex digit (0000 = 0 … 1111 = F). Or just use the converter on this page — it does it instantly. Example: 11111111 (binary) becomes FF (hex).
What is 11111111 (binary) in hexadecimal?
11111111 (binary) converts to FF (hex). 1111 = F and 1111 = F, giving FF.
Is this converter free and private?
Yes — it is free and unlimited, and the conversion runs entirely in your browser, so nothing is uploaded to a server.