How much does it cost to use a chase credit card and/or charge card when traveling outside the country?

Most card companies exchange money at rates that are generally more favorable than the rates you would get on your own at a retail store or hotel. How much does it cost to use a chase credit card and/or charge card when traveling outside the country?

Jeremy:
your statement will indicate a 3% fee for converting the foreign funds into US currency. It will normally appear as a "Foreign currency conversion adjustment."