Is there a workaround when Finder spends forever "calculating size"? Has anyone else had the issue of it taking forever to calculate the size of a folder? I have a folder of about 500 GB on an external USB drive, and it seems to never finish "Calculating Size" when I click on "Get Info," so I have no idea how to find out the exact size. Does anyone know of a workaround or how to prevent this?
The amount of time it takes is proportional to the number of files in the folder.  If there are a lot of files, it will take a long time to calculate.

You can also try doing it from the Terminal like so:

du -sh /path/to/folder