Before you click the button to complete a purchase, you will see the amount of any sales taxes that we have added to the purchase (in USD).
However, we can not confirm what exchange rate may be applied at any given time, and sometimes a customer's financial institution (for example, their credit card provider) may add a small fee to a transaction, which we can not predict.
So, unfortunately we cannot know what the exact charge to you will be for any particular currency, sorry about that.