While we provide the ability to view prices in multiple currencies for your convenience The Wikimedia Shop is currently only able to support charging in United States Dollars (USD) and all prices will convert back to USD when you press checkout on the shopping cart.
We process payments using PayPal, Visa, MasterCard, American Express and Discover. You can view prices in different currencies using the drop down near the top of each page (exchange rates are updated twice daily). If you would like us to support converting in a different currency let us know and we can add it.
We're actively working on options to support charging directly in many more currencies and additional payment options. If you have a suggestion for a new payment method please let us know at merchandisewikimedia.org so that we can prioritize development and resources.