Hex Converter
Convert between hexadecimal, decimal, and text instantly — a must-have for developers.
Hex Converter
Choose a conversion mode and enter your value.
What This Hex Converter Supports
This tool converts hexadecimal values to their decimal and binary equivalents and back in either direction, covering the three number systems most commonly encountered in programming and web development contexts, including hex color codes used constantly in CSS and design work.
How to Use the Hex Converter
Enter your value in your starting format, whether that is hexadecimal, decimal, or text. Select your target output format. The converted result appears instantly, calculated using standard base-16 number system rules for hexadecimal conversion.
How Hexadecimal Numbers Work
Hexadecimal, or base-16, uses sixteen distinct symbols, the digits 0 through 9 plus the letters A through F representing values 10 through 15, with each position representing a power of 16. Hex is widely used in programming specifically because it maps cleanly onto binary, with each single hex digit representing exactly four binary bits, making it a considerably more compact way to represent binary data.
| Decimal | Hex | Binary |
|---|---|---|
| 0 | 0 | 0000 |
| 1 | 1 | 0001 |
| 2 | 2 | 0010 |
| 3 | 3 | 0011 |
| 4 | 4 | 0100 |
| 5 | 5 | 0101 |
| 6 | 6 | 0110 |
| 7 | 7 | 0111 |
| 8 | 8 | 1000 |
| 9 | 9 | 1001 |
| 10 | A | 1010 |
| 11 | B | 1011 |
| 12 | C | 1100 |
| 13 | D | 1101 |
| 14 | E | 1110 |
| 15 | F | 1111 |
| 255 | FF | 11111111 |
Pro Tip: Hex color codes in web design use six characters after a pound sign, with each pair representing the intensity of the red, green, and blue color channels that combine to produce the final displayed color.
Common Uses for Hexadecimal in Web Development
Hex color codes, such as the common format starting with a pound sign followed by six characters, are used extensively in web design and CSS to specify exact colors, with each pair of hex digits representing the red, green, and blue color channel intensity respectively.
Frequently Asked Questions
Hexadecimal maps cleanly onto binary, with each hex digit representing exactly four binary bits, making it a considerably more compact and human-readable way to represent the same underlying binary data.
A standard hex color code uses six characters after a pound sign, with each pair representing the intensity of the red, green, and blue color channels that combine to produce the final displayed color.
Yes, it supports direct conversion between hexadecimal, decimal, and binary in any direction, useful for programming tasks that require moving between these number systems.
Hex is commonly used for color codes (e.g. #FF5733), memory addresses, and encoding binary data in a human-readable format.