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Octal Calculator
Enter two octal values in the given input fields and select the operator to perform a mathematical operation using base 8 calculator.
Table of Contents:
Octal calculator is an online tool that can be used to add, subtract, multiply, or divide two octal numbers.
What is octal number system?
Octal number system is the base-8 number system, and uses the digits 0 to 7. In octal system, each place is a power of eight. For example:
450 = 4 × 82 + 5 × 81 + 0 × 80
How to add octal numbers?
Octal addition is a bit different from decimal or binary addition. Here is the octal addition table to understand addition of octal numbers.
| + | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 |
| 0 | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 |
| 1 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 10 |
| 2 | 2 | 3 | 4 | 5 | 6 | 7 | 10 | 11 |
| 3 | 3 | 4 | 5 | 6 | 7 | 10 | 11 | 12 |
| 4 | 4 | 5 | 6 | 7 | 10 | 11 | 12 | 13 |
| 5 | 5 | 6 | 7 | 10 | 11 | 12 | 13 | 14 |
| 6 | 6 | 7 | 10 | 11 | 12 | 13 | 14 | 15 |
| 7 | 7 | 10 | 11 | 12 | 13 | 14 | 15 | 16 |
Follow the below example to add two octal numbers.
Example:
Add (562)8 and (647)8.
Solution:
Step 1: Place one value below the other one.
5 6 2
+ 6 4 7
Step 2: Add each integer using the above table. Carry the values onto next term as we do in general addition.
1 1 -------> Carry
5 6 2
+ 6 4 7
----------
1431
So, (562)8 + (647)8 = (1431)8
Octal addition calculator can save a lot of time and effort you put in octal calculations.
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