How to Check the Size of a Folder in Outlook 2013

If you use Outlook 2013 everyday and receive a lot of emails, especially emails containing large file attachments, then your Outlook file can get pretty large. So if you are trying to clear some space on your hard drive, or if you want to back up a folder to a flash drive, it can be helpful to determine the size of a specific folder. Fortunately you can determine this information from within Outlook, and you can even check top-level folders and find information about the size of subfolders.


Find the File Size of a Folder in Outlook 2013

Outlook 2013 has a preconfigured file size limit of 50 GB, which is an increase over the 20 GB that was the limit in earlier versions like Outlook 2003 and 2007. If you think that you are approaching this limit and are worried that it could start to affect Outlook’s performance, then follow the steps below to check the size of your folders.


Step 1: Launch Outlook 2013.


Step 2: Right-click the folder that you want to check in the column at the left side of the window, then click the Properties option. Note that you can click the Personal Folders, or other similar top-level folder, to check the combined size of any subfolders.

right-click the folder, then click properties



Step 3: Click the Folder Size button at the bottom of the window.

click the folder size button



Step 4: The size will be displayed at the top of the window. Note that there are two sizes listed – one for that specific folder itself, and one for the total size of any subfolders that it contains.

how to check the size of a folder in Outlook 2013



If your Outlook folder is getting very large, it is a good idea to back it up to an external hard drive in case your computer crashes. This is especially important if there is information contained in Outlook that can’t be replaced. Luckily external hard drive are becoming very affordable, and you can get a lot of space for a small investment. Click here to check the pricing on a 1 TB external hard drive at Amazon.

You can use a similar method to check the size of a folder in Outlook 2010 as well.

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