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Free Online Octal to Decimal Converter

Octal to Decimal Converter

Convert octal numbers (base-8) to decimal format with 100% accuracy and instant results.

Please enter a valid octal number (digits 0-7 only)
Result copied to clipboard!
Decimal Result:
Enter an octal number and click Convert

What this tool does?

The Octal to Decimal Converter is a simple online utility that converts base-8 numbers into base-10 (decimal) format. It's especially useful for developers, programmers, and electronics students working with number systems.

Key Features

Instant Conversion

Get immediate octal to decimal conversion results

Mobile Friendly

Clean and responsive UI that works on all devices

Input Validation

Automatically validates octal number format

Copy to Clipboard

One-click copying of conversion results

Works Offline

No internet required - runs entirely in browser

Privacy First

No data collected or saved anywhere

How to use?

  • Enter a valid octal number (only digits 0–7)
  • Click the Convert button
  • View the decimal result instantly
  • Click Copy to copy the result, or Reset to start over

Creative Use Cases:

  • Computer science students learning number systems
  • Programmers handling file permissions in Linux
  • Digital circuit designers
  • Anyone converting legacy data formats
  • Educational websites and math tools
  • Technical documentation tools

Tool Description:

Octal to Decimal Converter is a fast and free online tool that helps convert octal (base-8) numbers into decimal format with accuracy. Ideal for developers, students, engineers, and technical educators.

FAQs

What is an octal number?
A number in base-8, using only digits from 0 to 7.
Why convert octal to decimal?
Decimal is the standard human-readable number system; conversion is useful in programming and digital systems.
What happens if I enter invalid digits?
The tool will alert you and not perform the conversion.
Does this tool work offline?
Yes, it runs entirely in your browser.
Can I copy the result?
Yes, just click the Copy button.
Is there a limit to the octal number size?
The tool can handle octal numbers up to 20 digits for optimal performance.

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