United States Dollar country flag

United States Dollar

USD

US$
Argentine Peso country flag

Argentine Peso

ARS

$
United States Dollar
The United States dollar (symbol: $; currency code: USD) is the official currency of the United States and several other countries. The Coinage Act of 1792 introduced the U.S. dollar at par with the Spanish silver dollar, divided it into 100 cents, and authorized the minting of coins denominated in dollars and cents. U.S. banknotes are issued in the form of Federal Reserve Notes, popularly called greenbacks due to their predominantly green color. The U.S. dollar was originally defined under a bimetallic standard of 371.25 grains (24.057 g) (0.7734375 troy ounces) fine silver or, from 1834, 23.22 grains (1.505 g) fine gold, or $20.67 per troy ounce. The Gold Standard Act of 1900 linked the dollar solely to gold. From 1934, its equivalence to gold was revised to $35 per troy ounce. In 1971 all links to gold were repealed. The U.S. dollar became an important international reserve currency after the First World War, and displaced the pound sterling as the world's primary reserve currency by the Bretton Woods Agreement towards the end of the Second World War. The dollar is the most widely used currency in international transactions, and a free-floating currency. It is also the official currency in several countries and the de facto currency in many others, with Federal Reserve Notes (and, in a few cases, U.S. coins) used in circulation. The monetary policy of the United States is conducted by the Federal Reserve System, which acts as the nation's central bank. As of February 10, 2021, currency in circulation amounted to US$2.10 trillion, $2.05 trillion of which is in Federal Reserve Notes (the remaining $50 billion is in the form of coins and older-style United States Notes). As of January 1, 2025, the Federal Reserve estimated that the total amount of currency in circulation was approximately US$2.37 trillion.
Argentine Peso
The peso (established as the peso convertible; several older currencies were also named peso) is the currency of Argentina since 1992, identified within Argentina by the symbol $ preceding the amount in the same way as many countries using peso or dollar currencies. It is subdivided into 100 centavos, but with 10 pesos being worth about 1 US cent in early 2025, smaller denominations are not issued or in normal use. Its ISO 4217 code is ARS. It replaced the austral at a rate of 10,000 australes to one peso. Argentine currency has experienced severe inflation, with periods of hyperinflation, since the mid-20th century, with periodic change of the currency valuation to a new version at a rate ranging from 100:1 to 10,000:1. A new peso introduced in 1992, officially the peso convertible de curso legal, was worth 10,000,000,000,000 (ten trillion) pesos moneda nacional, the currency in use until 1970. Since the early 21st century, the peso has experienced further substantial inflation, reaching 289.4% year-on-year in April 2024, the highest since the current peso was introduced in the Convertibility plan of 1991. The official exchange rate for the United States dollar valued the peso convertible de curso legal at one US dollar at its introduction in 1992, which was maintained until early 2002. Afterwards, it went from a 3:1 exchange rate with the US dollar in 2003 to 178:1 in early 2023. On 14 August 2023, the official exchange rate was fixed at ARS$350 to one US dollar; the unregulated rate valued the peso at ARS$665 to one US dollar. On 15 November 2023, the crawling peg was restored. On 12 December 2023, following the election of president Javier Milei, economy minister Luis Caputo changed the official exchange rate to 800 pesos to the U.S. dollar from the previous 366.5, a devaluation of 54%, to be followed by a monthly devaluation target of 2% (about 27% per year). At the time, the unofficial exchange rate was around 1,000 pesos per dollar.