Hex Calculator
To use Hexadecimal Calculator, enter the values in the input boxes below and click on the Calculate button.
A hex number, or hexadecimal number, is a numerical representation in the hexadecimal positional numeral system. The hexadecimal system uses a base of 16 and includes sixteen symbols: the numbers 0 to 9 and the letters A, B, C, D, E, and F (or their lowercase counterparts), representing values from 0 to 15.
Key Characteristics of Hex Numbers:

Base 16 System:
 Hex numbers are based on the hexadecimal system, which is different from the familiar decimal (base 10) system.

Symbols:
 The symbols used in hex numbers are 09 and AF (or af), where A stands for 10, B for 11, C for 12, D for 13, E for 14, and F for 15.

Positional Notation:
 Similar to decimal notation, each position in a hex number represents a power of 16.

Example:
 For instance, the hex number A is equivalent to 10 in decimal, and the hex number 1F is equivalent to 31 in decimal.

Binary Relationship:
 Hexadecimal is commonly used in computing because it provides a convenient representation of binarycoded values. Each hex digit corresponds to a fourbit binary sequence.

URL Encoding:
 Hex numbers are often used in URL encoding, where special characters are represented using percentencoding with hex numerals.
Conversion Examples:
 Decimal to Hex: 20 in decimal is 14 in hex (2 * 16^1 + 0 * 16^0 = 14).
 Hex to Decimal: 1F in hex is 31 in decimal (1 * 16^1 + 15 * 16^0 = 31).
Arithmetic Operations:
 Hex numbers can undergo arithmetic operations like addition, subtraction, multiplication, and division, just like decimal numbers.
Application in Computing:
 Hexadecimal is widely used in computing for memory addresses, binarycoded values, and other lowlevel programming representations.
URL Encoding Example:
 URL:
https://example.com/path/file?name=John%20Doe
 Here,
%20
represents a space in hexadecimal encoding.
In conclusion, hex numbers play a crucial role in computing, providing a compact representation of binarycoded information. They are used in various contexts, including memory addressing, URL encoding, and lowlevel programming. Understanding hex numbers is essential for professionals working in computer science, programming, and related fields.