Hex to Binary Converter

Convert hexadecimal numbers to binary instantly. Enter any base-16 value, including optional 0x prefixes, and get the binary result immediately for programming, networking, electronics, and computer science tasks.

Quick Hex to Binary Examples

Hexadecimal Binary
A1010
1A00011010
2F00101111
7B01111011
FF11111111
100000100000000
ABC101010111100
FFFF1111111111111111

How to Convert Hexadecimal to Binary

Each hexadecimal digit corresponds to exactly 4 binary bits. Replace every hex digit with its 4-bit binary equivalent and join the groups together.

Example: Convert 2F to binary 2 → 0010 F → 1111 Combine the groups → 00101111 Therefore, 2F₁₆ = 00101111₂.

Common Uses of Hex to Binary Conversion

Programming: view binary values represented by hexadecimal numbers.
Digital electronics: analyze binary signals and logic states.
Networking: inspect packet data and MAC addresses.
Computer science: learn relationships between number systems.

Frequently Asked Questions

What is hexadecimal?
Hexadecimal is a base-16 number system that uses digits 0–9 and letters A–F.
Why does each hex digit become 4 binary bits?
A single hex digit can represent values from 0 to 15, which requires exactly 4 bits in binary.
What is FF in binary?
FF equals 11111111 in binary.
Does the converter accept lowercase letters?
Yes. Values such as ff and FF are treated the same.
Can I enter a value with 0x?
Yes. Inputs such as 0x1A3F are supported.
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