All prices are quoted in U.S. dollars (USD). To get the cost in your currency, use Google's currency conversion calculator. Rates change throughout the day, so checking just before you order will give you the best accuracy. If you are using a credit card from an international bank, the bank will convert your order total on your credit card statement to your local currency based on the conversion rate at the time of your order.
Tip: Note that most checkout systems charge you a fee even when you pay in your own currency, but it's built into the total price you see on the checkout page, so you don't actually "see" it, it's hidden in the total. When you checkout on my website using a card that's a different currency, no extra fees are added to cover the currency conversion on my end, you will only receive the fee from your bank.