Chmod Permission Calculator
On this page, you will find a versatile online conversion tool for chmod permissions.
Chmod is used on UNIX and Linux based computers and systems to set permissions for files and directories. If you're working with a Linux or UNIX webserver, you will have no chance but to wrap your hand around chmod permissions - and how to set and calculate them. This UNIX file permission calculator will help you with the latter.
Fill in the permissions for each group of users (find some explanations underneath the calculator), special mode bits, and UNIX umask values, and you will receive your permission settings. They are displayed in an octal representation, as a simple string, final with umask applied, providing a sample, and with a regular output.