Linux Chmod Permissions Calculator
Choose rwx permissions for owner, group, and others to see the matching octal mode and symbolic string.
Calculation only. No files are inspected or changed.
Octal
Symbolic
A QUICK WALKTHROUGH
How to use this tool
- Select read, write, and execute for each class.
- Review the generated octal and symbolic notation.
- Use the text as a reference for a command you will review yourself.
Notation reference
Read contributes 4, write contributes 2, and execute contributes 1 within each owner, group, or other class.
Text calculation only
This page does not access files, inspect a filesystem, run chmod, or change permissions.
GOOD TO KNOW
Common questions
Does it change a file?
No. It only displays permission notation.
What does 755 mean?
It represents rwxr-xr-x: owner has read/write/execute, group and others have read/execute.
Can I run the command directly?
Review the path and context yourself before using any command.