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The online Hex Calculator is used to perform addition, subtraction, multiplication and division on two hexadecimal numbers.

In mathematics and computer science, hexadecimal is a positional numeral system with a base of 16. It uses sixteen distinct symbols, most often the symbols 0–9 to represent values zero to nine, and A, B, C, D, E, F (or alternatively a–f) to represent values ten to fifteen. Hexadecimal is widely used in computer science because it is relatively easy to convert between hex and binary notation for numbers, and hex is much easier to remember than binary.