Hexadecimal to Binary

Instantly Convert Hexadecimal to Binary

hexadecimal to binary

What Is a Hexadecimal Number?

hexadecimal (base-16) number uses sixteen distinct symbols: 0-9 and A-F, where A=10B=11, …, F=15. It is commonly used in computing, memory addressing, color representation (e.g., #FF00FF), and digital systems.

What Is a Binary Number?

Binary (base-2) is the foundational number system of all modern computing. It only uses two digits: 0 and 1. Each binary digit represents a power of 2, making it ideal for logic gates and machine-level processing.

Hex to Binary Formula

To convert from hexadecimal to binary, use this simple formula:

  • Convert each hex digit to its 4-bit binary representation.
  • Combine all binary groups to get the final binary number.

Example:
Hex: 2F → Binary: 0010 1111

Hexadecimal to Binary Example

Convert Hex 3A to Binary:

  • 3 = 0011
  • A = 1010

Binary result = 00111010

Hex to Binary Table

HexadecimalBinary
00000
10001
20010
30011
40100
50101
60110
70111
81000
91001
A1010
B1011
C1100
D1101
E1110
F1111
1000010000
1F00011111
FF11111111

How to Convert Hex to Binary?

You can use the below infographic to learn hex to binary conversion step by step:

hex to binary conversion infographic

How to Convert Hex to Binary in Python?

If you’re a developer, you can use Python to convert hexadecimal to binary effortlessly:

hex_num = "1A3"
binary = bin(int(hex_num, 16))[2:]
print(binary)  # Output: 110100011

Use Cases of Hex to Binary Conversion

  • Low-level programming: Understanding machine instructions and memory layouts
  • Digital electronics: Logic circuit design and analysis
  • Network protocols: IP headers and hex-dump interpretation
  • Hex to binary file manipulation: Useful when working with raw binary or firmware dumps

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FAQs – Hex to Binary Conversion

Is there a limit to how large a hex number I can convert?

No, you can convert any size hexadecimal value. Our tool handles large values efficiently.

Why is each hex digit represented by 4 binary digits?

Because 16 (hex base) = 2⁴, each hex digit translates directly to a 4-bit binary number.

Can I use this tool offline?

You can bookmark the page or use browser-based caching. For development, see our Python version: Hex to Binary in Python.