{"id":"comparisons.finder-calculate-all-sizes-vs-storage-inspector","url":"/faq/comparisons/finder-calculate-all-sizes-vs-storage-inspector","category":{"id":"comparisons","title":"Comparisons & alternatives"},"subcategory":{"id":"disk-analysers","title":"Disk-space analysers"},"question":"Why use the Storage Inspector when Finder can calculate folder sizes?","alt_questions":["finder calculate all sizes vs storage studio","show folder sizes in finder list view","find biggest folders mac finder","storage inspector vs finder get info","finder folder size too slow"],"short_answer":"Finder sizes folders one window at a time. The Storage Inspector ranks the biggest folders across your disk, drills down, names usual suspects, and offers Move to fast drive on rows that can safely move.","answer_markdown":"Finder can show folder sizes in List view (with **Calculate all sizes** turned on in View Options), but only for the folder you're looking at — you still have to hunt across your disk yourself.\n\nThe **Storage Inspector** does the hunting:\n\n- it ranks your **largest folders** across the disk, biggest first, and drills into any of them to any depth as results arrive;\n- it checks a curated list of usual suspects — device backups, developer data, app caches, Downloads, the Trash and more — with friendly names;\n- rows that can safely move get a **Move to fast drive** button, and a busy folder gets **Move when closed**;\n- it shows what changed since last time, and what your Mac's snapshots are holding.\n\nFinder is still handy for a quick look inside one folder. See [What's Using Space](/manual/whats-using-space).","answer_html":"

Finder can show folder sizes in List view (with Calculate all sizes turned on in View Options), but only for the folder you're looking at — you still have to hunt across your disk yourself.

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The Storage Inspector does the hunting:

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Finder is still handy for a quick look inside one folder. See What's Using Space.

","answer_text":"Finder can show folder sizes in List view (with Calculate all sizes turned on in View Options), but only for the folder you're looking at — you still have to hunt across your disk yourself.\n\nThe Storage Inspector does the hunting:\n\n- it ranks your largest folders across the disk, biggest first, and drills into any of them to any depth as results arrive;\n- it checks a curated list of usual suspects — device backups, developer data, app caches, Downloads, the Trash and more — with friendly names;\n- rows that can safely move get a Move to fast drive button, and a busy folder gets Move when closed;\n- it shows what changed since last time, and what your Mac's snapshots are holding.\n\nFinder is still handy for a quick look inside one folder. See What's Using Space.","tags":["storage inspector","finder","folder sizes"],"related":[{"id":"comparisons.disk-visualisers-vs-storage-studio","question":"How does Storage Studio compare with disk visualisers like DaisyDisk or GrandPerspective?","url":"/faq/comparisons/disk-visualisers-vs-storage-studio"},{"id":"comparisons.storage-inspector-vs-about-this-mac-storage-bar","question":"Why does Storage Studio's Storage Inspector show different numbers from the macOS storage bar?","url":"/faq/comparisons/storage-inspector-vs-about-this-mac-storage-bar"}],"applies_to":"all","last_reviewed":"2026-10-01","title":"Why use the Storage Inspector when Finder can calculate folder sizes? — Storage Studio FAQ","description":"Finder sizes folders one window at a time. The Storage Inspector ranks the biggest folders across your disk, drills down, names usual suspects, and offers Move to fast drive on rows that can safely move.","crumbs":[{"name":"Home","path":"/"},{"name":"FAQ","path":"/faq/"},{"name":"Comparisons & alternatives","path":"/faq/comparisons/"},{"name":"Why use the Storage Inspector when Finder can calculate folder sizes?","path":"/faq/comparisons/finder-calculate-all-sizes-vs-storage-inspector"}],"jsonld":{"@context":"https://schema.org","@type":"FAQPage","url":"https://storagestudio.us/faq/comparisons/finder-calculate-all-sizes-vs-storage-inspector","inLanguage":"en","dateModified":"2026-10-01","mainEntity":[{"@type":"Question","name":"Why use the Storage Inspector when Finder can calculate folder sizes?","alternateName":["finder calculate all sizes vs storage studio","show folder sizes in finder list view","find biggest folders mac finder","storage inspector vs finder get info","finder folder size too slow"],"acceptedAnswer":{"@type":"Answer","text":"Finder can show folder sizes in List view (with Calculate all sizes turned on in View Options), but only for the folder you're looking at — you still have to hunt across your disk yourself.\n\nThe Storage Inspector does the hunting:\n\n- it ranks your largest folders across the disk, biggest first, and drills into any of them to any depth as results arrive;\n- it checks a curated list of usual suspects — device backups, developer data, app caches, Downloads, the Trash and more — with friendly names;\n- rows that can safely move get a Move to fast drive button, and a busy folder gets Move when closed;\n- it shows what changed since last time, and what your Mac's snapshots are holding.\n\nFinder is still handy for a quick look inside one folder. See What's Using Space.","url":"https://storagestudio.us/faq/comparisons/finder-calculate-all-sizes-vs-storage-inspector"}}]},"fragment":"
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Comparisons & alternatives · Disk-space analysers

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Why use the Storage Inspector when Finder can calculate folder sizes?

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Short answer: Finder sizes folders one window at a time. The Storage Inspector ranks the biggest folders across your disk, drills down, names usual suspects, and offers Move to fast drive on rows that can safely move.

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Finder can show folder sizes in List view (with Calculate all sizes turned on in View Options), but only for the folder you're looking at — you still have to hunt across your disk yourself.

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The Storage Inspector does the hunting:

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  • it ranks your largest folders across the disk, biggest first, and drills into any of them to any depth as results arrive;
  • it checks a curated list of usual suspects — device backups, developer data, app caches, Downloads, the Trash and more — with friendly names;
  • rows that can safely move get a Move to fast drive button, and a busy folder gets Move when closed;
  • it shows what changed since last time, and what your Mac's snapshots are holding.
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Finder is still handy for a quick look inside one folder. See What's Using Space.

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Last reviewed

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Related questions

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