Chmod / File Permission Calculator

Calculate Unix file permissions in both octal (e.g. 755) and symbolic (e.g. rwxr-xr-x) notation.

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How to use Chmod / File Permission Calculator

1Check the read/write/execute permissions for owner, group and others, or type a 3-digit octal value directly.
2The octal (e.g. 755) and symbolic (e.g. rwxr-xr-x) notation update together.

Frequently asked questions

Each digit represents owner, group and other permissions respectively, where read=4, write=2, execute=1, summed together — e.g. 7 = read+write+execute.