The United States and Italy use two different types of currencies. The United States has the U.S. dollar, which can also be referred to as a federal reserve note. Italy uses the euro as its main unit of currency.
The coins in circulation for Italy's economic system are 1-cent coins, 2-cent coins, 5-cent coins, 10-cent coins, 20-cent coins, 50-cent coins, ?1 coins and ?2 coins. The United States has the penny, the nickel, the dime, the quarter and the dollar coin. Although they are two different systems, a U.S. dollar is worth about three-quarters of a euro as of July 2014.