Convert.ToBoolean (Single) converts single-precision number to Boolean value.
Class Sample Public Shared Sub Main() Dim numbers() As Single = { Single.MinValue, 20e-15, 0,100.33, Single.MaxValue } Dim result As Boolean For Each number As Single In numbers result = Convert.ToBoolean(number) Console.WriteLine("{0,-15} --> {1}", number, result) Next End Sub End Class