PowerShell script to check the current user's recycle bin size

check-recycle-bin-size.ps1

Write-Host $env:username 'Recycle Bin size' -fore cyan

$sid = (gwmi win32_useraccount | ? {$_.name -eq $env:username}).SID
$sm = (ls -recurse ("C:\`$recycle.bin\$sid") -force -EA SilentlyContinue | measure -property length -sum).sum

Write-Host ($sm / 1GB) "GB"
Write-Host ($sm / 1MB) "MB"
Write-Host " "
pause

<#
calculate size (in bytes) in 1 line:

(ls -recurse -force -EA SilentlyContinue ("C:\`$recycle.bin\$((gwmi win32_useraccount | ? {$_.name -eq $env:username}).SID)") | measure -property length -sum).sum
#>

To check the size for all accounts:

gwmi win32_useraccount | select -Prop name, sid | foreach {
  Write-Host $_.name (ls -recurse ("C:\`$recycle.bin\$($_.SID)") -force -EA SilentlyContinue | measure -Prop length -sum).sum
}

Values are in bytes.
Some may not appear due to user file permissions.