- go to www.google.com
- Select gmail option
3. Select "Account"
4. go down below page and reach to "Account Storage section"
5. Select "Manage Storage"
6. In top you can see existing size and usage
7. All Google Accounts give you 15 GB of storage for free. By upgrading to a Google One plan, you agree to the Google One Terms of Service. Note: The Google Privacy Policy describes how data is handled in this service.15 GB
If you want more than 30TB you can request from Google
