Hexadecimal vs. Octal — What's the Difference?

In mathematics and computing, the hexadecimal (also base 16 or hex) numeral system is a positional numeral system that represents numbers using a radix (base) of 16. Unlike the decimal system representing numbers using 10 symbols, hexadecimal uses 16 distinct symbols, most often the symbols "0"–"9" to represent values 0 to 9, and "A"–"F" (or alternatively "a"–"f") to represent values from 10 to 15.

The octal numeral system, or oct for short, is the base-8 number system, and uses the digits 0 to 7, that is to say 10 represents 8 in decimal and 100 represents 64 in decimal. However, English uses a base-10 number language system and so a true octal system might use different language to avoid confusion with the decimal system.

Of, relating to, or based on the number 16

Of, relating to, or based on the number eight

Of or relating to sixteenths.

A number system having 8 as its base

A number system having 16 as its base.

The number system that uses the eight digits 0, 1, 2, 3, 4, 5, 6, 7.

A sixteenth.

A digit or value in the octal number system.

A number system with base sixteen, using the digits 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, A, B, C, D, E and F, most used in computing as a hexadecimal digit can represent four bits, half a standard byte, and thus a single byte can be represented conveniently with two digits.

Concerning numbers expressed in octal or mathematical calculations performed using octal.

A number expressed in the hexadecimal system.

Of or pertaining to a number system having 8 as its base;

Of a number, expressed in hexadecimal.

Of or pertaining to a number system having 16 as its base