Octal Calculator

1. Input Octal: Enter numbers using only digits 0 through 7.
2. Calculate: Perform standard arithmetic operations.
3. Verify: The result is provided in Octal (Base-8).

The Octal Calculator is a niche tool for Base-8 calculations. While less common than Hex or Binary today, Octal is still relevant in legacy computing systems (like PDP-8), file permissions (UNIX/Linux chmod), and digital electronics.

Perform math directly using digits 0-7. This tool prevents "invalid digit" errors by restricting inputs to valid Octal characters.