Originally Posted by Rojo
I used my Wells Fargo Credit Card for a purchase in Madrid and it came up in USD. I did a quick calculation and got a decent exchange rate Euro/USD, so I did accept it and sign. When I got my card satement, Wells Fargo did not charge a currency conversion fee or anything. I paid the $185USD stated in the voucher!!
Comparing this purchase of $185USD to other purchases I made in Madrid, I ended up paying more for the purchases I got in Euros (thanks to the exchange rate + currency conversion fee) than for the $185USD purchase...
FWIW, I used my Wells debit card quite a few times while in Japan, and for purchases there was a minor exchange fee BUT for ATM withdrawals from the Post Office ATMs (the only ones that work), there was a $5 non-Wells ATM fee each time. So they get you one way or the other, guaranteed.