How to find the size of a folder using PowerShell?

You can use the  Get-ChildItem to get the list of files and directories.

Mode                LastWriteTime         Length Name                                  

----                -------------         ------ ----                                  

d-----       2019-08-19  10:42 AM                APPDATA output                        

d-----       2019-08-12   3:18 PM                AWS                                   

-a----       2019-08-16  12:35 PM          15806 AppDataSize.csv                       

-a----       2019-08-28   3:39 PM          15358 Appwiz.txt                            

The Length object gives the size of the file, however that to get the size of the folder, we can use the  -Recurse to dive deep into the folder to get the details

PowerShell Code: 

Get-ChildItem -Path 'C:\Temp\APPDATA output' 

Mode                LastWriteTime         Length Name                                  

----                -------------         ------ ----                                  

-a----       2019-08-16  12:35 PM          15806 AppDataSize.csv                        

-a----       2019-08-16   1:12 PM           3909 AppDataSize2.csv                      

-a----       2019-08-16   3:33 PM           2744 AppDataSize2_User2.csv                

-a----       2019-08-16   5:18 PM          10737 AppDataSize_User.csv                   

-a----       2019-08-15  10:42 AM           2745 finalappdata.ps1                      

-a----       2019-08-16   1:12 PM          34616 output.txt 

PowerShell Code:

Get-ChildItem -Path 'C:\Temp\APPDATA output'| Measure-Object -Property Length -sum

Count    : 6

Average  :

Sum      : 70557

Maximum  :

Minimum  :

Property : Length

PowerShell Code: 

#Get the folder size and store it in the $Folder Variable

$Folder=Get-ChildItem -Path 'C:\Temp\APPDATA output'| Measure-Object -Property Length -sum | Select sum

#Converting them to a decimal number with the Size in MB

$FolderSize="{0:N2}" -f ($Folder.Sum / 1MB) + " MB"

Echo "Folder Size = $FolderSize"

Folder Size = 0.07 MB

To get the size of a folder in remote location we can use the same command and give the path of the location

PowerShell Code: 

#Get the folder size and store it in the $Folder Variable

$Folder=Get-ChildItem -Path '\\server1\Temp\APPDATA output'| Measure-Object -Property Length -sum | Select sum

#Converting them to a decimal number with the Size in MB

$FolderSize="{0:N2}" -f ($Folder.Sum / 1MB) + " MB"

Echo "Folder Size = $FolderSize"