How to Find File and Folder Sizes on a Mac (2 Easy Ways)

Find the Size of Any File or Folder on Your Mac

Want to know how much space something is using? Here are two quick methods:

Use the Info Shortcut

  • Open Finder.
  • Select a file or folder.
  • Press CMD + I (or right-click > Get Info) to see its size and other details in a second window.

Show All Sizes in Finder (Permanent Setting)

  1. Open Finder.
  2. In the Finder menu bar click View.
  3. Select Show View Options.
  4. Check “Calculate all sizes”.

This is a more permanent solution – once enabled, Finder will automatically show sizes for all items in that folder every time you open it. It’s a great way to get a constant overview of storage usage without extra steps.

These two tricks make it easy to monitor storage without extra tools or digging through settings.