The euro (symbol: €; code: EUR) is the official currency of 19 of the 27 member states of the European Union. This group of states is known as the eurozone or, officially, the euro area, and includes about 343 million citizens as of 2019. The euro is divided into 100 cents.
The currency is also used officially by the institutions of the European Union, by four European microstates that are not EU members, the British Overseas Territory of Akrotiri and Dhekelia, as well as unilaterally by Montenegro and Kosovo. Outside Europe, a number of special territories of EU members also use the euro as their currency. Additionally, over 200 million people worldwide use currencies pegged to the euro.
The euro is the second-largest reserve currency as well as the second-most traded currency in the world after the United States dollar. As of December 2019, with more than €1.3 trillion in circulation, the euro has one of the highest combined values of banknotes and coins in circulation in the world