# Octal to Decimal

## Octal to Decimal Converter: Online and Free

Octal to decimal converter is an online tool designed to help you convert octal numbers to decimal numbers. It is fast, user-friendly, and provides local computing, ensuring data security. This tool is ideal for working with computer systems and programming.

### Benefits and Advantages

Octal to decimal converter has several benefits and advantages over other conversion tools:

- It is online and free, meaning you can access it from anywhere and at any time.
- It is fast and easy to use, with no complicated steps or procedures.
- It is secure and provides local computing, ensuring that your data is safe.
- It can clear and copy data, making it easy for you to move data from one place to another.
- It has sample data, giving you an idea of how to use the tool.

### Core Algorithm

To convert an octal number to decimal, you need to multiply each digit of the octal number with its corresponding power of 8 and then add up the products. The formula for converting an octal number to decimal is:

`Decimal Number = (8^2 _ a) + (8^1 _ b) + (8^0 \* c)`

Where a, b, and c represent the digits of the octal number.

### How to Use the Octal to Decimal Converter

Using the octal to decimal converter is easy and straightforward. Follow these simple steps:

- Input or paste your octal number in the input field provided.
- Click on the "Convert" button. The tool will automatically convert the octal number to decimal.
- Click on the "Copy" button if you want to copy the decimal number to your clipboard.
- Click on the "Clear" button if you want to clear the input field and start over.

### Example Codes for Octal to Decimal Conversion

#### Python

```
# Octal to Decimal conversion in Python
octal_num = "1234567"
# Convert octal to decimal
decimal_num = int(octal_num, 8)
print(decimal_num)
```

#### C

```
// Octal to Decimal conversion in C
#include <stdio.h>
#include <stdlib.h>
int main()
{
char octal_num[] = "1234567";
char *endptr;
// Convert octal to decimal
long int decimal_num = strtol(octal_num, &endptr, 8);
printf("%ld\n", decimal_num);
return 0;
}
```

#### JavaScript

```
// Octal to Decimal conversion in JavaScript
let octal_num = "1234567";
// Convert octal to decimal
let decimal_num = parseInt(octal_num, 8);
console.log(decimal_num);
```

#### Java

```
// Octal to Decimal conversion in Java
public class OctalToDecimal {
public static void main(String[] args) {
String octal_num = "1234567";
// Convert octal to decimal
int decimal_num = Integer.parseInt(octal_num, 8);
System.out.println(decimal_num);
}
}
```

#### PHP

```
// Octal to Decimal conversion in PHP
$octal_num = "1234567";
// Convert octal to decimal
$decimal_num = octdec($octal_num);
echo $decimal_num;
```

### Conclusion

The Octal to Decimal converter is a fast, secure, and user-friendly tool that provides local computing. With its benefits and advantages, you can easily convert octal numbers to decimal numbers. The core algorithm and steps outlined in this manual provide an easy way to implement octal to decimal conversion in different programming languages.