International travel is costly enough without having to pay extra just for swiping, dipping or tapping your credit card beyond U.S. borders. But foreign transaction fees are lurking, even domestically. Any purchase made through an international merchant and processed abroad is subject to a foreign fee.

To get a better understanding of what consumers know about foreign fees, how they influence our card choices and more, WalletHub conducted a nationally representative online survey. We asked people about everything from their international travel and spending habits to their biggest worries when using a credit card internationally. You can find the complete results in the following infographic.