USD US Dollar
The United States dollar (USD, $) is the world’s leading reserve and trading currency, serving as the standard for global markets and international finance. Created in 1792 and strengthened after World War II through the Bretton Woods system, it became the foundation of modern monetary exchange. It is the official currency of the United States and its territories, including Puerto Rico, Guam, and the U.S. Virgin Islands. Several nations such as Ecuador, El Salvador, Panama, and East Timor use the dollar as legal tender, either unilaterally or by agreement. Many others peg their national currencies to it, reflecting its central role in the global economy.
Issued by: Federal Reserve System of the United States
Where is USD Used?
US Dollar is the official currency in 18 countries: American Samoa, Bonaire, Sint Eustatius and Saba, Micronesia, and 15 more.
American Samoa
Bonaire, Sint Eustatius and Saba
Micronesia
Guam
British Indian Ocean Territory
Marshall Islands
Northern Mariana Islands
Puerto Rico
Palau
Turks and Caicos Islands
Timor-Leste
U.S. Minor Outlying Islands
British Virgin Islands
U.S. Virgin Islands
United States
Panama
El Salvador
Ecuador
Currencies Most Exchanged with USD
These currencies are frequently exchanged with US Dollar due to geographic proximity and economic ties.
Compare USD Exchange Rates
Check how US Dollar compares to other currencies around the world. See all rates in one place.
FAQ
Common questions about US Dollar and its usage.