Octal to Decimal Converter
Digits: 0
Octal to Decimal Converter
Convert octal (base-8) numbers to Decimal (base-10). Octal is historically significant in computing — Unix/Linux file permissions (like 755 or 644) are expressed in octal.
Octal to Decimal converts base-8 to the familiar base-10 system. For example, octal 755 = decimal 493.
This tool is especially useful for developers working with Unix file permissions, legacy systems, or studying number systems in computer science.
1How to Use
- Enter an octal number (digits 0-7 only).
- The result updates instantly as you type.
- Click the copy icon to copy the result.
★Key Features
- Input validation — only digits 0-7 accepted.
- Arbitrary precision via BigInt.
- Instant, real-time conversion.