This article describes how to estimate storage usage for entire G Suite account or a subset of resources in domain. Storage usage determines infrastructure costs and is important when you request a custom quote.
1. Log in G Suite administrator panel and go to Reports section
2. In Reports section select Apps usage activity tab
3. In Apps usage activity screen select Total Storage Used (MB) from drop-down in the top-left of the screen, then domain space usage will be shown on the time series chart. The chart will help you to view current storage usage and its growth over the time.
If you need to look up the storage for a subset of resources within your G Suite account, you need to apply organizational unit filter or take usage figures for needed users in the table below.