Booooze

I don't really get what your doing with your code. It should be simple. Perhaps your over thinking it.

How hard is that to throw into the equation?

I'm not amzing at math, and never realyl had to bother with conversions, but if you get your math right, consider posting all of your code. Also, as you said, you have to do it a paticular way for your class, so it may not be as easy as just that. The class is to teach you programming, not math. If you have problems with the math, simply google the equations. the google calculator always helps me. I have noticed that you haven't declared any of the variables. Some might tell you that vb is sloppy and will do it for you. In some cases that is true, but I have experiences that say otherwise.