How to check size of a folder using powershell?

[powershellhdp]

Hi guys I am new in the world of powershell and trying to incorporate the job I do. How can I check size of a folder using powershell before copying it?

[#2]

@powershellhdp 

Here's two simple examples:

1. Get the size as a number (useful if the number's going to be used later on)

(Get-ChildItem -Path "D:\Data\Temp\" -Recurse -Force | Measure-Object -Sum Length).Sum

2. Get the size as a "nicely" formatted string (useless if you need a number later on):

(Get-ChildItem -Path "D:\Data\Temp\" -Recurse -Force | Measure-Object -Sum Length).Sum.ToString("n0")

Cheers,

Lain

[#3]

@powershellhdp 

Get-ChildItem -Path C:\temp\ -Recurse | Measure-Object -Sum Length | Select-Object @{name='size(mb)';expression={$_.Sum/1mb}}