Thanks for your reply. I mean I know the math obviously, I was actually curious about how to edit this. So let's say I want to add taiwanese dollar. How can I populate the cells below to make them change irt as well? I tried changing the currency code and the link but I suspect this has to be edited, changed somewhere else in the Macro? Maybe this is a little to much then for the beginning, I should rather concentrate on the basics first. Anyway, I will be able to work with what you've provided me with.