When we open a certain folder of documents on our Mac using Finder in list format, we usually see the size of each of the elements it contains next to the name. But what about the folders? It is not shown, we must use the information in the folder to consult it. Fortunately we can ask Finder to calculate sizes for us automatically.

Finder, folder sizes, and display options

Before continuing it is important to know that calculating the size of a folder, Although it seems a simple operation, it involves a little more complexity than it appears. To calculate this size, the Finder has to add the sizes of all the files in the folder as well as their folders.

For avoid spending unnecessary resources on this operation Finder does not show us that size by default. However, we can ask it to do so, something that we have to activate folder by folder. The steps are the following:

  1. We open the app Finder on our Mac.
  2. We enter the folder from which we want to see the size of its subfolders.
  3. We press Command (⌘) + J.
  4. We activate the option Calculate sizes.

Screenshot 2020 10 07 At 15 52 17

We will automatically see that Finder shows us the sizes of the folders. Bear in mind that after opening the folder it may take several seconds until we see the values ​​appear. Depending on how old the Mac is, especially if you still use hard drives instead of solid storage, and taking into account the size of the folder, it may take several seconds.

Let’s also keep in mind that we will have to repeat these same steps in each of the folders where we want to see the size of the folders. In general, it is recommended to activate this option for very specific folders and use the key combination Command (⌘) + i to obtain the folder sizes without having to alter the settings.

Finder has many more options than meets the eye. Without a doubt, knowing these little details, such as how to rename labels or decide the opening folder, increase our productivity and make our day-to-day work easier with our files.