How to find the size of moodledata and the database on your Moodle site.
Knowing the size of your Moodle database and files (moodledata) is important if you want to assess the capacity of your current hosting or move your Moodle site elsewhere e.g. to another provider.
Moodledata – Microsoft Windows Server 2016
Once you have located the moodledata folder, right click and select properties.
The folder size and size of disk will be visible on the first screen.
Moodle – MS SQL server
You can view the database size using SQL Server management tools. You can view the database size from the database properties windows. Right click the database, select properties.