Instructions
To use the calculator:
- Choose your tenant type: Commercial or Education.
- Select a license type from the dropdown list or start typing in the License column.
- Enter the number of licenses for your tenant in the Quantity column.
- The storage per license is displayed in the Grant column, based on your license selection. Custom entries can be made, but are marked red and use italic text.
- The total storage for each license type is calculated and displayed in the Total column, multiplying the quantity by the individual license grant.
- Add () or Delete () rows to account for your different license types.
- Don't forget to include any purchased additional storage through the Office 365 Extra File Storage license type. At time of writing these purchases are visible in the Azure portal, but not in the Microsoft 365 Admin Center, Billing, Licenses page and are therefore easy to overlook.
- The total storage pool field updates to reflect the base allowance plus all storage granted by your license selections and quantities.
- Export () to a CSV file (Microsoft Excel compatible) to download your work.
- Import () a CSV file you've previously exported to pick up where you left off. Imported files are processed entirely client-side in the browser and are not sent to m365maps.com.
This calculator can be used to determine your total storage allowance based on the tenant type and sum of licenses you have.
You can use this to better understand how your mix of licenses contributes towards your total storage allowance, or to model different licensing packages to compare.
Storage allowances are displayed in Gigabytes (GB), where 1 GB = 2^30 bytes.
The base allowance for Enterprise tenants is 1 TB (1024 GB), and 100 TB (102400 GB) for Education tenants. Only tenants that include a qualifying license type receive the base allowance.
Storage is calculated specifically for SharePoint in Enterprise tenants, however Education tenants share this storage allowance between SharePoint, OneDrive, and Exchange.
Qualifying license types contribute additional storage based on their specific allowances.
Unpaid Education licenses (including Student Use Benefits) do not include a storage allowance.
All licenses that contribute storage are listed in the calculator, some licenses that don't contribute storage are included for clarity & completeness and are marked 'non-qualifying' in the license drop down list.
Tenant admins can view their used and remaining storage, which together add up to their storage allowance. Commercial customers should look in the SharePoint Admin Center, Home Page, SharePoint storage usage dashboard, or the Sites, Active sites page. Education customers should look in the Microsoft 365 Admin Center, Reports, Storage report.
Within the SharePoint Admin Center the storage used and remaining figures will present in TB, which can be multiplied by 1024 to get GB. Alternatively, a more accurate fly-out appears when hovering the mouse over the horizontal bar in the SharePoint storage used Dashboard which shows storage figures in GB down to two decimal places, this is particularly useful for reconciling totals with this calculator.
Legacy QuickStart customers should note that storage allowances in the SharePont Admin Center are over-stated where QuickStart default 100,000 license activations are present. This calculator can be used to determine the license-based allowance for QuickStart tenants, however QuickStart customers should consult with their Microsoft account team for further clarification.
Customers with Microsoft granted storage concessions should consult with their Microsoft account team.
Storage allowances in Education tenants changed in late 2024, Education customers should refer to the online guide Changes to storage offerings across Microsoft 365 Education.
Enterprise customers can read more about SharePoint storage allowances and limits in the SharePoint Service Descriptions.