The following countries and territories use U.S. dollars instead of a unique local currency:
Puerto Rico.
Ecuador.
Panama.
Somalia.
El Salvador.
Turks and Caicos Islands.
Guam.
U.S. Virgin Islands.
People Also Ask
Best: Use a debit card at an ATMThere are lots of options for converting your money to a foreign currency, but the easiest and most economical one is probably already in your wallet.
A good rule of thumb, though, is that, on average, you should plan to carry between $50 and $100 per day in the currency of the country in which you're travelling.