Unfortunately banks can charge pretty much what they want for foreign exchange (FX) transactions. It is therefore best to use a specialist foreign exchange broker for larger transactions. Two FX brokers that I have used in the past are Ebury Partners, who will give you a personal service and where you can speak to someone on the phone, and Oanda, who are an on-line only service. You can contact Ebury Partners on 0845 519 1009 or via the web at http://www.eburypartners.co.uk. Please feel free to mention my name. You can contact Onada at http://fxglobaltransfer.oanda.com/ Onada also have a useful app for BlackBerry, iPhone, or Android. You can find them in your app store or at http://www.oanda.com/mobile/converter/blackberry http://www.oanda.com/mobile/converter/iphone http://www.oanda.com/mobile/converter/android respectively. These will give you an idea of the charges (up to 4% or more) that you could be charged for a transaction. I hope helps