United States Currency

If you bring currency valued at more than $10,000 USD, you must fill out a Currency Reporting Form upon arrival. This includes foreign currency but does not include credit cards with limits greater than $10,000 USD.
The United States does not limit the amount of money you bring, but your home country might. Check with your home country’s laws.
Credit cards and cash cards are convenient and you can use them easily to purchase items or acquire cash and advances. Be sure to notify your credit card company that you will be traveling and using the card internationally.
It is helpful to exchange some of your money into U.S. dollars before you arrive, for transportation and food costs as you travel.
You will find the best exchange rates at your local bank, rather than in airports and hotels, which may charge fees.
To estimate currency conversions, use one of the following: Yahoo! Currency Converter or OANDA Currency Converter.