Any upate? In addition, you can also try the following command. Get-MailboxStatistics -Identity "username" | Format-Table DisplayName, @{label="Mailbox Size (MB)";expression={$_.TotalItemSize.Value.ToMB()} Hope it is useful.Noya Lau TechNet Community Support

Any upate? In addition, you can also try the following command. Get-MailboxStatistics -Identity "username" | Format-Table DisplayName, @{label="Mailbox Size (MB)";expression={$_.TotalItemSize.Value.ToMB()} Hope it is useful.Noya Lau TechNet Community Support

i do Get-MailboxStatistics "username" fl *size*,*count*,*databa* and it gives me: TotalDeletedItemSize : 263765373B TotalItemSize : 3523480938B AssociatedItemCount : 20 DeletedItemCount : 144 ----------- how can i do get these information in "mb" or "gb" rather than "byte" ?

try like this: Get-MailBoxStatistics mailbox | Select @{name="Total Item Size (MB)"; Expression={$_.TotalItemSize.Value.ToMB()}},DeletedItemCount,@{name="TotalDeletedItemSize(MB)";Expression={$_.TotalDeletedItemSize.Value.ToMB()}} ExchangeBlog Regards Remigiusz

You can refer to the following thread for your question: http://blogs.technet.com/b/gary/archive/2010/02/20/the-get-mailboxstatistics-cmdlet-the-totalitemsize-property-and-that-pesky-little-b.aspx http://aspoc.net/archives/2007/11/07/convert-the-get-mailboxstatistics-output-from-bytes-to-mb-or-gb-in-exchange-2007/ Girishp