eur can refer to Euro and European code, EUR is the abbreviation of Euro, and EUR is the international currency code of Euro.

The 17 member states of the euro are Ireland, Austria, Belgium, Germany, France, Finland, Netherlands, Luxembourg, Portugal, Spain, Greece, Italy, Slovenia, Cyprus, Malta, Slovakia, and Estonia.

Together they are called the Eurozone.

The euro is generally called Euro in Hong Kong.

The European Currency Exchange Fund (XEU) was replaced by EUR (Euro) (1XEU=1EUR), 1 Euro = 100 Euro cents (cent).

The euro was established by the Treaty on European Union signed in Maastricht in 1992 to establish the European Economic and Monetary Union (EMU).

Member states need to meet a series of strict standards, such as budget deficits not exceeding 3% of GDP, debt ratios not exceeding 60% of GDP, and inflation and interest rates close to the average level of EU countries.