Binary to Hex Converter
Convert between binary and hexadecimal instantly. Live conversion with decimal output and bit grouping.
Client-Side Only
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Bidirectional
Decimal
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Grouped Binary (4-bit)
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Binary ↔ Hex Worked Steps
Enter a binary or hexadecimal value to see each 4-bit conversion step.
Binary ↔ Hex Reference
0000
0
0001
1
0010
2
0011
3
0100
4
0101
5
0110
6
0111
7
1000
8
1001
9
1010
A
1011
B
1100
C
1101
D
1110
E
1111
F
Read the hexadecimal basics guide for the four-bit grouping method behind this table.
Frequently Asked Questions
How do I convert binary to hexadecimal?
Group the binary digits into sets of 4 (from right to left), then convert each group to its hex digit. For example, 11111111 → 1111 1111 → F F → FF. Our tool does this instantly as you type.
Why is binary to hex conversion so clean?
Because 16 = 2⁴, each hex digit maps to exactly 4 binary digits. This makes the conversion a simple 1:4 mapping. No complex arithmetic needed — just memorize or look up the 16 possible groups.
Can I convert hex back to binary?
Yes. This tool is bidirectional. Enter hex in the hex field and binary appears instantly, or enter binary and get hex. Each hex digit expands to exactly 4 binary digits.
What is the binary value of hex FF?
FF in hex = 11111111 in binary = 255 in decimal. F = 1111, so FF = 1111 1111. This is the maximum value of a single byte (8 bits).
How many binary digits per hex digit?
Exactly 4. Each hex digit (0-F) represents a 4-bit binary value (0000-1111). So a byte (8 bits) is always 2 hex digits, a 16-bit value is 4 hex digits, and so on.