Extreme_Calculator

[Bright]

I didn't understand what you are saying mate...

[Connor]

    Private Sub TextBox1_TextChanged(sender As Object, e As System.EventArgs) Handles TextBox1.TextChanged
        'code to transform the number would go here
        'textbox2.text = result from the code above
    End Sub

Anytime you change the text in the textbox it will run the code. I just suggested this so you could make it run smoother. I also suggested that you just use a lot less textboxes. idc though good luck with this.

[Bright]

It is running smoothly now also