Imports System
Public Class Program
Public Shared Function KilometersToMiles(ByVal miles As Double) As Double
Return miles * 0.621371192
End Function
Public Shared Sub Main()
Dim kilometers As Double = 100
Dim miles As Double = KilometersToMiles(kilometers)
Console.WriteLine("{0} km = {1} miles", kilometers, miles)
End Sub
End Class
' run:
'
' 100 km = 62.1371192 miles
'