How do you convert hex to binary?

Replace each hex digit with its 4-bit binary equivalent. 0=0000, 9=1001, A=1010, F=1111. Example: AF = 1010 1111.

How many binary bits does one hex digit represent?

One hex digit represents exactly 4 binary bits (a nibble), because 2^4 = 16.

FF in binary is 11111111. F = 1111, so FF = 1111 1111.

Convert hexadecimal numbers to binary by expanding each hex digit into 4 bits. Each digit group is shown visually. Free, fast, and accurate.

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Hexadecimal Input

The conversion is straightforward because each hex digit maps exactly to 4 binary bits. Simply replace every hex digit with its 4-bit equivalent:

Hex:    A    B    C
Binary: 1010 1011 1100
Result: 101010111100

This is why hex is so popular in computing — it's a compact, human-friendly representation of binary data. A byte (8 bits) is just 2 hex digits.

Network subnets — Convert IP/MAC addresses for binary analysis
Color codes — #FF5733 = 11111111 01010111 00110011 in RGB binary
Assembly programming — Reading machine code in hex, working with it in binary
Debugging — Examining memory dumps and register values

How do I convert hex to binary?

Replace each hex digit with its 4-bit binary equivalent. Example: F=1111, A=1010, so FA = 11111010.

What is FF in binary?

FF = 1111 1111 = 11111111 in binary (eight 1s), which equals 255 in decimal.

How many binary bits equal 1 hex digit?

Exactly 4 binary bits (one nibble) equal 1 hex digit, because 2â´ = 16 — the same as the hex base.