Octal to Decimal Converter
What is an Octal to Decimal Converter?
An Octal to Decimal Converter is a tool that converts a number from octal (base 8) to decimal (base 10). It is useful in computing, digital electronics, and programming.
Why Use an Octal to Decimal Converter?
- To interpret octal values in computer memory addresses and file permissions.
- To convert legacy system numbers (older computers used octal-based processing).
- To understand digital logic in microcontrollers and embedded systems.
How to Convert Octal to Decimal?
The formula for conversion:

Where dn are the digits of the octal number.
Example: Convert 753₈ to decimal:

When to Use It?
- In computer science (e.g., Unix file permissions: 755 in octal).
- In electronics (e.g., microprocessor programming).
- In historical computing (e.g., older systems that used octal instead of binary).