Octal is a unit of number system measurement. The symbol oct is often used to represent it. Base-8 number system is a way of representing numbers using a set of 8 distinct digits.
In this system, the place value of each digit is a power of 8, and the number is expressed as the sum of these powers, each multiplied by the corresponding digit.
The following is a conversion chart to help you compare values in base 8 with other bases (2, 8, 10, 16):
| Value in Base 8 | Base 2 | Base 10 | Base 16 |
|---|---|---|---|
| 0 | 0 | 0 | 0 |
| 1 | 1 | 1 | 1 |
| 2 | 10 | 2 | 2 |
| 3 | 11 | 3 | 3 |
| 4 | 100 | 4 | 4 |
| 5 | 101 | 5 | 5 |
| 6 | 110 | 6 | 6 |
| 7 | 111 | 7 | 7 |
| 10 | 1000 | 8 | 8 |
| 11 | 1001 | 9 | 9 |
| 12 | 1010 | 10 | A |
| 13 | 1011 | 11 | B |
| 14 | 1100 | 12 | C |
| 15 | 1101 | 13 | D |
| 16 | 1110 | 14 | E |
| 17 | 1111 | 15 | F |
DomainConverters