The Hexadecimal System is base 16. It is a shorthand method for representing the 8-bit bytes that are stored in the computer system. This system was chosen to represent identifiers because it can represent the 8-bit byte by using only two hexadecimal symbols.

Convert hexadecimal numbers to decimal numbers by multiplying the hex digits by the base number of the system (Base 16) raised to the exponent of the position.

As with binary numbers, converting from decimal to hex is done with a system called the remainder method. In this method we repeatedly divide the decimal number by the base number (in this case 16). We then convert the remainder each time into a hex number.

Converting binary to hexadecimal and hexadecimal to binary is an easy conversion. The reason is that base16(hexadecimal) is a power of base 2(binary). Every four binary digits (bits) are equal to one hexadecimal digit.