Octal Calculator

First Octal Number (Base 8), a :
Second Octal Number (Base 8), b :

Addition, a + b (base 8) :
Subtraction, a – b (base 8) :
Multiplication, a * b (base 8) :
Division, a / b (base 8) :

In Decimal Form :
a, in Decimal form (base 10):
b, in Decimal form (base 10):

Addition, a + b (base 10) :
Subtraction, a – b (base 10) :
Multiplcation, a * b (base 10) :
Division, a / b (base 10) :


Octal Calculator is a free online tool that displays the addition, subtraction, multiplication and division of octal numbers. BYJU’S online octal calculator tool makes the calculation faster and it displays the result in a fraction of seconds.

How to Use the Octal Calculator?

The procedure to use the octal calculator is as follows:

Step 1: Enter two octal  numbers in the input field

Step 2: Now click the button “Calculate” to get the result 

Step 3: Finally, the addition, subtraction, multiplication and division of octal numbers will be displayed in the output field

What is Meant by Octal Number System?

In Mathematics, there are different number systems, such as binary, octal, decimal, and hexadecimal number systems. The binary system is called the base 2 number system, the octal system stands for base 8 number system, the decimal system stands for the base 10 number system, and the hexadecimal system stands for base 16 number system. The octal number system uses the numbers from 0-7. To represent the number after 7, the values can be represented using the binary form.


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