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Hex to Binary online

Convert hexadecimal values to binary (and decimal, octal) - type in any base, all four update at once.

Number Base Converter logo
by
CHUNKY
MUNSTER
Binary (base 2)
Octal (base 8)
Decimal (base 10)
Hex (base 16)
Base 32
Base 64 (num)

About Number Base Converter

Type any number in any base field and all others update automatically. Supports binary (2), octal (8), decimal (10), hexadecimal (16), base 32 and numeric base 64. Uses JavaScript's parseInt(n, base) and n.toString(base). All calculations happen in your browser.

Common conversions

Using the Number Base Converter

  1. Enter any number - in hex (0x prefix or bare), binary (0b), octal (0o), or decimal.
  2. All four representations update instantly.
  3. Toggle the grouped/spaced display for easier bit reading.
  4. Copy any output value with a single click.

Hex to Binary Converter is a vital tool for software engineers and systems architects working with low-level data. Hexadecimal, binary, octal, and decimal are different bases for representing the same integer value. This hexadecimal converter provides a real-time view of these bases simultaneously, facilitating fast translation between code and machine logic. Whether you are debugging memory or writing bitmasks, our tool ensures your numeric base conversions are precise.

Understanding Hexadecimal and Bitwise Bases

Each hex digit corresponds to exactly 4 bits, making hex to binary conversion remarkably efficient. This numeric base converter helps you visualize nibbles and bytes without manual calculation. The fixed mapping from hex A to binary 1010 simplifies bitwise operations and binary translator tasks. By using this binary to hex tool, you can quickly analyze Unix permissions in octal or interpret signed integers in two's complement binary form.

Frequently Asked Questions

How do I convert a hex colour to binary?

Hex colour #FF8800 = three bytes FF, 88, 00. FF = 11111111, 88 = 10001000, 00 = 00000000. The full binary is 11111111 10001000 00000000. Each byte is an independent channel (R, G, B).

What is a nibble?

A nibble (or nybble) is 4 bits - half a byte. Since one hex digit represents exactly 4 bits, nibbles and hex digits are the same thing in different representations.

Why is octal used for Unix file permissions?

Each Unix permission group (owner, group, other) has exactly 3 bits (r, w, x). Three bits = one octal digit. So chmod 755 sets permissions in three octal digits - much more compact than 9 binary bits.

How do I convert negative numbers?

The tool uses two's complement for negative integer representation - the standard for signed integers in all modern hardware. Enter a negative decimal to see its two's complement binary and hex representations.

Check out our related tools like the Binary to Decimal converter, Bitwise Calculator, and ASCII Table. Bookmark this Hex to Binary Converter for your next low-level programming project.

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