Free Binary to Hex Converter – Convert Binary to Hexadecimal Online

Convert binary numbers to hexadecimal instantly. See step-by-step 4-bit group conversion. Uppercase or lowercase output. Complete reference table. 100% free, browser-based.

What Is Binary to Hexadecimal Conversion?

Binary to hexadecimal conversion transforms base-2 numbers (using only 0 and 1) into base-16 numbers (using 0-9 and A-F). This conversion is fundamental in computer science, programming, and digital electronics.

Why Convert Binary to Hex?

Hexadecimal is preferred over binary in many contexts because:

Compact representation: 4 binary digits = 1 hex digit
Human readability: FFFF is easier to read than 1111111111111111
Common in programming: Memory addresses, color codes, byte values

How to Use This Tool

Step 1: Enter Binary

Type or paste your binary number (only 0s and 1s).

Step 2: Choose Case

Select uppercase (A-F) or lowercase (a-f) output.

Step 3: View Result

See the hex output and step-by-step conversion.

Step 4: Copy

Click copy to use the result.

Conversion Method Explained

Binary to hex conversion works by grouping binary digits into sets of 4 (starting from the right), then converting each group to its hex equivalent.

Step-by-Step Example

Convert 10101111 to hex:

Group into 4-bit chunks (right to left):
- 1010 | 1111
Convert each group:
- 1010 = 8+2 = 10 = A
- 1111 = 8+4+2+1 = 15 = F
Result: AF

Binary to Hex Reference Table

Binary	Decimal	Hex
0000	0	0
0001	1	1
0010	2	2
0011	3	3
0100	4	4
0101	5	5
0110	6	6
0111	7	7
1000	8	8
1001	9	9
1010	10	A
1011	11	B
1100	12	C
1101	13	D
1110	14	E
1111	15	F

Common Conversion Examples

Binary	Hexadecimal	Use Case
11111111	FF	Max byte value
10101010	AA	Alternating bits pattern
11001100	CC	Two-bit alternating
11110000	F0	High nibble set
00001111	0F	Low nibble set
1111111111111111	FFFF	Max 16-bit value

Understanding the Math

Each binary position represents a power of 2:

Binary:    1    0    1    0
Position:  2³   2²   2¹   2⁰
Value:     8    0    2    0
Sum:       8 + 0 + 2 + 0 = 10 = A in hex

Use Cases

Programming

Reading memory dumps
Debugging byte values
Working with bitwise operations

Web Development

Converting binary color values to hex colors
Understanding character encoding

Networking

Analyzing network packets
Working with MAC addresses

Digital Electronics

Reading register values
Working with microcontrollers

Technical Details

Padding

If the binary length isn't a multiple of 4, leading zeros are added automatically.

Example: 101 becomes 0101 → hex 5

Spaces Allowed

You can include spaces for readability: 1010 1111 works the same as 10101111.

Why 4 Bits = 1 Hex Digit?

4 bits can represent values 0-15 (2⁴ = 16 combinations)
Hexadecimal has exactly 16 symbols (0-9, A-F)
This 1:4 ratio makes conversion straightforward

Frequently Asked Questions

What if my binary isn't divisible by 4?

The tool automatically pads with leading zeros. 101 becomes 0101.

Does it support spaces?

Yes. Spaces are removed before conversion.

Is there a length limit?

No practical limit. Very long binary strings work fine.

Is my data saved?

No. All processing happens in your browser.

Binary to Hex Converter