Chmod Calculator: Convert 755 to Symbolic (rwxr-xr-x)
Convert chmod octal values like 755 to symbolic notation (rwxr-xr-x) and back. Free online calculator — runs locally, no upload.
Unix file permissions use either octal notation (755, 644, 600) or symbolic notation (rwxr-xr-x). Octal is compact; symbolic is readable. DevOps docs, deployment scripts, and chmod man pages mix both — a quick converter saves time.
What does 755 mean?
- 7 (owner) = read + write + execute → rwx
- 5 (group) = read + execute → r-x
- 5 (others) = read + execute → r-x
- 755 in symbolic form = rwxr-xr-x
Common permission values
- 644 — rw-r--r-- (files: owner read/write, others read)
- 600 — rw------- (private files, e.g. SSH keys)
- 755 — rwxr-xr-x (executables and directories)
- 777 — rwxrwxrwx (world-writable — avoid in production)