The WordPress SiteHealth utility is handy for diagnosing and troubleshooting issues, but it is also great for finding key information about your WordPress website.
Here's how to find your disk usage using WordPress Site Health:
- Login to your WordPress admin
- In the main menu on the left, choose Tools > Site Health
- Select the Info tab at the top
- Expand "Directories and Sizes"
At the bottom you should see "Total installation size" - this is the combination of WordPress core files, plugins, themes, your media files, and database. In other words, everything that makes up your website.