The euro is the second most important currency in the world.
The proportion of international payments made in euros and US dollars is roughly equal and the euro is the world’s second favourite currency for borrowing, lending and central bank reserves.
It is also used as an official or de facto currency as well as an 'anchor' currency by a number of regions geographically outside the European Union:
In addition to the euro area, the euro is also the currency of some non-EU countries:
The stable monetary system behind the euro makes it an attractive 'anchor' currency: several countries and territories outside the euro area and the EU have linked their currencies to the euro. In some cases, it is by bilateral agreement with euro area countries, while in others it is a unilateral decision of the country concerned.