Functions/Data/Convert-ByteSize.ps1
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function Convert-ByteSize { [cmdletbinding()] param ( [validateset("Bytes","KB","MB","GB","TB")] [string]$From, [validateset("Bytes","KB","MB","GB","TB")] [string]$To, [Parameter(Mandatory=$true)] [double]$Value, [int]$Precision = 4 ) Process { # Select INPUT Unit switch($From) { "Bytes" {$value = $Value} "KB" {$value = $Value * 1024 } "MB" {$value = $Value * 1024 * 1024} "GB" {$value = $Value * 1024 * 1024 * 1024} "TB" {$value = $Value * 1024 * 1024 * 1024 * 1024} } # Select OUTPUT Unit switch ($To) { "Bytes" {return $value} "KB" {$Value = $Value/1KB} "MB" {$Value = $Value/1MB} "GB" {$Value = $Value/1GB} "TB" {$Value = $Value/1TB} } # Express Conversion return [Math]::Round($value,$Precision,[MidPointRounding]::AwayFromZero) } } |