Enter the nth digit in the octal number and its position from the right into the calculator to determine the value in decimal.

## Base 8 Formula

The following formula is used to calculate the value in a Base 8 Calculator.

V = ∑ (Dn * 8^n)

Variables:

- V is the value in decimal Dn is the nth digit in the octal number n is the position of the digit from the right, starting from 0

To calculate the value in decimal, for each digit in the octal number, multiply the digit by 8 raised to the power of its position from the right, starting from 0. Sum all these values to get the final result in decimal.

## What is a Base 8?

Base 8, also known as octal, is a number system that uses eight digits, from 0 to 7. It is a positional numeral system, meaning the value of a digit depends on its position. It is commonly used in computing systems, particularly for representing file permissions in Unix-like operating systems.

## How to Calculate Base 8?

The following steps outline how to convert a Base 8 number to decimal using the formula: V = ∑ (Dn * 8^n).

- First, gather the octal number.
- Next, determine the position of each digit from the right, starting from 0.
- For each digit, multiply it by 8 raised to the power of its position.
- Sum up all the results from step 3.
- Finally, the sum obtained in step 4 is the decimal value of the Base 8 number.

**Example Problem:**

Use the following variables as an example problem to test your knowledge.

Octal number: 345

Position of digits: 0, 1, 2

Using the formula V = ∑ (Dn * 8^n), we can calculate the decimal value.