Currency hedging comes to mind, when having the need to lock a currency exchange rate e.g. options, futures, forwards, etc. This gives you the ability to know,

Currency hedging comes to mind, when having the need to lock a currency exchange rate e.g. options, futures, forwards, etc. This gives you the ability to know, what the conversion rate will be at settlement time. https://en.wikipedia.org/wiki/Foreign_exchange_hedge https://en.wikipedia.org/wiki/Foreign_exchange_hedge Alternatively, your payment gateway/provider will handle it for you as soon as the transaction is received at their end.