Chmod Calculator

Calculate Linux file permissions instantly. Toggle read, write, and execute bits for owner, group, and others to get the numeric chmod value and command.

Read
Write
Execute
Owner
Group
Others

Special Permissions

Numeric (Octal) 000
Symbolic Notation ---------
chmod 000 filename

Quick Presets

Permission Reference

ReadWriteExecute
View file contents / List directory Modify file contents / Create & delete in directory Run as program / Enter directory

About Chmod Calculator

In Unix and Linux systems, file permissions are represented by three sets of read (4), write (2), and execute (1) bits for the owner, group, and others. This calculator helps you quickly determine the correct numeric value by toggling individual permission bits. The result can be used directly with the chmod command in your terminal.

Features