Chmod Calculator
Convert between octal file modes like 755 and rwx symbolic notation. Type an octal value or tick read/write/execute boxes — both stay in sync.
| Read (4) | Write (2) | Execute (1) | |
|---|---|---|---|
| Owner | |||
| Group | |||
| Others |
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Octal
—
Symbolic
chmod permission calculator
Common presets, checkbox grid and copy-ready chmod command.
FAQ
What does 755 mean?
Each digit is the sum of read (4), write (2) and execute (1). 7 = rwx for the owner, 5 = r-x for group and others.
How do I use it?
Type an octal value like 644 to see the permissions, or tick the read/write/execute boxes to build the octal and symbolic notation.
Can I copy a chmod command?
Yes — copy chmod 755 filename for shell use.
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