Why doesn't Windows Explorer show folder sizes in the list?

Because a folder’s size is the sum of everything inside it, and computing that for every folder in a list would mean scanning every folder tree before the screen could even draw. Windows avoids that cost by leaving the Size column blank for folders and offering the Properties dialog for the one folder you ask about. Elegant File Explorer still gives you that recursive total in Properties, plus a Statistics panel that breaks the whole folder down by category and by file type.

How do I see the real, total size of a folder including subfolders?

Right-click the folder and open Properties. It walks the entire folder tree in the background — every file and subfolder, all the way down — and shows the total size along with the file and folder counts. It says “Calculating…” while it works and doesn’t follow links or junctions, so the number reflects what actually lives in that folder.

What's the difference between Properties and Statistics?

Both add up the whole tree; what changes is what they tell you. Properties answers quickly “how big is this folder?” — total, files and folders. Statistics answers “what is making up that size?” — hero numbers, the composition donut by category, the top types (by size or by count) and the largest files.

Does Statistics count the files inside subfolders?

Yes. The analysis is recursive: it walks the whole tree, adding up the contents of subfolders. It runs in the background with progress and can be cancelled — and if you cancel, the panel says the numbers reflect only what had been read so far.

Can I compare several folders' sizes at once?

Select the folders and open Selection details for a quick per-item summary with a combined total, or open each in Properties for the exact recursive number. For files (not folders), sorting the Size column biggest-first in Details view surfaces the heavy ones instantly. Available now on the Microsoft Store.

See folder sizes Windows Explorer doesn't show

Open any folder in Windows Explorer, switch to Details view, and look at the Size column. For files, it’s filled in. For folders, it’s blank — every single one. That empty column is one of the oldest quiet frustrations of using Windows: the one thing you most want to know, how big is this folder, is exactly the thing the list refuses to tell you.

So you do the workaround everyone does: right-click a folder, choose Properties, wait for the little counter to spin, read the number, close the window. Then repeat for the next folder. And the next. To compare five folders you open five dialogs, one at a time, jotting the numbers in your head. It works, but it’s slow, and it never gives you the one thing you actually came for: a side-by-side picture of where the space went.

This guide is about getting that picture — the real size of a folder, and, better still, a breakdown of what’s inside it — without the one-dialog-at-a-time grind.

Why the Size column is blank for folders#

It’s not an oversight, exactly. A file has a size the moment you look at it — the number is right there in the file system. A folder doesn’t: its “size” is the sum of everything inside it, including every subfolder, all the way down. To show that number in a list of a hundred folders, Windows would have to walk every one of those trees before it could draw the screen — and on a big drive that could take a while. So Explorer takes the safe route and leaves the column blank, handing you the Properties dialog for the one folder you ask about.

That’s a reasonable trade-off for Windows. It’s just not much help when the whole point is to scan your folders and spot the heavy one.

The real size of one folder, calculated in the background#

Elegant File Explorer keeps the familiar answer where you’d expect it. Right-click a folder, open Properties, and it does the honest, recursive thing: it walks the entire folder tree in the background — every file, every subfolder, all the way down — adding up the bytes and counting the files and folders as it goes. While it works it shows “Calculating…”, then settles on the final number: total size, file count, folder count.

A couple of details worth knowing, because they’re the difference between a number you can trust and one you can’t:

It’s truly recursive — the total includes the contents of every subfolder, not just the files sitting at the top level. That’s the number you want when a folder has a deep structure.
It doesn’t follow reparse points (links and junctions), so a symbolic link pointing elsewhere on the disk isn’t counted twice or sent chasing across your drive. The total reflects what actually lives in that folder.
If you close the window before it finishes, the scan stops — it won’t keep grinding in the background for a dialog you’ve dismissed.

Properties also shows the created, modified and accessed dates, the file attributes as small chips (Read-only, Hidden, System, and so on), and, for files that came from the web, the download’s origin. But the headline, for our purposes, is that recursive total — the honest weight of the folder.

The better view: what’s actually eating the space#

Knowing a folder weighs 12 GB is useful. Knowing that 9 of those gigabytes are video files is what actually lets you act. That’s where the Statistics panel comes in, and it’s the part Explorer has no answer for at all.

Right-click the folder and choose Statistics (it’s also in the command palette under Ctrl+P). The analysis is recursive — it walks the whole tree, including everything inside subfolders — runs in the background with progress, and can be cancelled at any moment. If you stop it, it says the numbers reflect only what had been read, rather than faking a total.

The panel gives you four readings:

Hero numbers up top: total size, how many files, how many folders and how many distinct types live in there.
Composition by category: a donut splitting Images, Videos, Audio, Documents, Archives, Code, Apps and Others, with a legend and percentages. This is the chart that answers, at a glance, “is it video, photos, or app junk?”.
Top types: bars per extension, with a toggle between By size and By count. The two readings tell different stories — a thousand tiny text files top the count while barely registering on size; three video files do the opposite.
Largest files: a straight list of the heaviest items in the tree. Very often the entire cleanup happens right here, in five lines.

The target is whatever you clicked: right-click a folder and it analyses that folder; with several items selected, it aggregates the selection — handy for comparing “these three project folders” without opening three windows.

So the two tools split the job cleanly:

Just want the total weight of a folder, fast? Use Properties.
Want to understand what is making up that weight? Use Statistics — categories, types and the largest files.

Used together, you go from “this folder is huge” to “this folder is huge because of these ten video files” in about two clicks.

And when the question gets bigger — which folder on the whole drive is eating me alive? — there’s a view built for exactly that: the disk space map, which draws every folder at the size it actually occupies.

A quick way to weigh several folders at once#

If what you really want is to compare a handful of folders — which of my project folders is the fat one? — there’s a lighter path too. Select several items and open Selection details: you get a card per item, and a subtitle that sums the selection up (“N items · X files, Y folders · total size”). It’s a fast way to total up a specific pile of things you’ve hand-picked, without opening Properties five times.

And of course, the plain Size column is always there in Details view for the files themselves — sort by it, biggest first, and the heavy files float straight to the top of whatever folder you’re in.

Seeing the size isn’t the same as freeing it#

One thing this guide deliberately doesn’t do is delete anything. Statistics and Properties are about understanding where your space went — reading the map before you touch the terrain. That’s on purpose: seeing the numbers calmly, before you act, is what keeps a cleanup from turning into an accident.

When you’ve found the heavy folder and you’re ready to actually reclaim the space — hunt down the giant files, set aside old installers, clear out duplicate copies — that’s a separate, careful process, and we wrote it up in free up disk space without deleting anything important. Think of this post as the diagnosis and that one as the treatment: first you see the sizes, then you decide, and only then do you free the space.