So to know the size of your Evernote database:
- On Windows: in the Windows client, tools/options/general tab shows you where your database is located. You can then view that folder in Explorer to get the exb and/or folder file sizes.
- On MacOS: do a CMD+i on user/library/application support/evernote and you’ll get everything Evernote related.
As of today my Evernote database is close to 16 Go. What about yours?
On MacOS Mountain Lion (10.8.2), you have to go to this directory : /Users/Your_MacOS_Login_Name/Library/Containers/com.evernote.Evernote/Data
More information on this in this Evernote forum discussion thread
Thanks @atsushiyago for the tweet on this.