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Microsoft 365 Email and Calendaring - What is my Quota and How do I Check it?

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What's my Quota on Microsoft 365?

50 Gigabytes for affiliates. 100 GB for faculty, students and staff.

How do I check my quota usage?

Outlook on the Web

  1. Login to Outlook on the Web.
  2. Click the gear icon > Account > Storage.
  3. You will see the amount of space your mailbox is currently using and which folders have the most data

Outlook 2016/2013/2010

Note: These steps assume you are connected to your Microsoft 365 account via Exchange. By default, this feature is turned off, so you must turn it on to view quota information. Here's how:

  1. Start Outlook.
  2. Right-click anywhere on the bottom Outlook bar.
  3. Click on the first option Quota Information and you will see that it switches to the "On" mode.
  4. You can now see the amount of free space left and the number of items you have in each folder, in the bottom left-hand corner of the Outlook bar.

Outlook for MacOS

Note: These steps assume you are connected to your Microsoft 365 account via Exchange.

  1. Start Outlook.
  2. From the Top Menu Bar select Outlook > Settings > Storage

See also

IS&T Contributions

Documentation and information provided by IS&T staff members


Last Modified:

June 03, 2025

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