Octal

Updated: 05/05/2017 by Computer Hope

A base-8 number system commonly used to represent binary numbers and other numbers in a shorter form. Below is a basic chart of how a binary number is converted to an octal number.

Binary 1 1 1 1 1 1 1 1
Octal +200 +100 +40 +20 +10 +4 +2 +1

Below are some binary examples and their octal equivalents.

10001111 = 217
10101111 = 257
11010100 = 324

Base, Binary, Decimal, Hexadecimal, Octet