Chmod Calculator
Calculate file permissions using an interactive grid. Convert octal permissions to symbolic notation and a command example.
Local processing
This tool processes your input in your browser.
[IN] Permissions
Enter one to three digits from 0 to 7. Short values are padded with zeros. Special bits (setuid, setgid, sticky) are not supported.
[OUT] Calculated Results
The leading dash represents a regular file. Replace file.txt with your target path before using the command.
Quick Reference
- 777
- Read, write and execute for everyone
- 755
- Owner writes; everyone reads and executes
- 644
- Owner writes; everyone reads
- 600
- Owner reads and writes only
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