Euro is the official currency of the eurozone, which consists of 19 of the 28 member states of the European Union: Austria, Belgium, Cyprus, Estonia, Finland, France, Germany, Greece, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Portugal, Slovakia, Slovenia, and Spain. The currency is also officially used by the institutions of the European Union and four other European countries, as well as unilaterally by two others, and is consequently used daily by some 337 million Europeans as of 2015.Outside of Europe, a number of overseas territories of EU members also use the euro as their currency.

Additionally, 210 million people worldwide as of 2013 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 January 2017, with more than €1,109,000,000,000 in circulation, the euro has one of the highest combined values of banknotes and coins in circulation in the world, having surpassed the U.S. dollar at one point.

The name euro was officially adopted on 16 December 1995 in Madrid.The euro was introduced to world financial markets as an accounting currency on 1 January 1999, replacing the former European Currency Unit (ECU) at a ratio of 1:1 (US$1.1743). Physical euro coins and banknotes entered into circulation on 1 January 2002, making it the day-to-day operating currency of its original members, and by May 2002 had completely replaced the former currencies. While the euro dropped subsequently to US$0.8252 within two years (26 October 2000), it has traded above the U.S. dollar since the end of 2002, peaking at US$1.6038 on 18 July 2008. Since late 2009, the euro has been immersed in the European sovereign-debt crisis which has led to the creation of the European Financial Stability Facility as well as other reforms aimed at stabilising the currency. In July 2012, the euro fell below US$1.21 for the first time in two years, following concerns raised over Greek debt and Spain’s troubled banking sector. As of June 2017, the euro–dollar exchange rate stands at ~ US$1.13.


Dollar is the official currency of the United States and its insular territories per the United States Constitution. It is divided into 100 smaller cent (¢) units. The circulating paper money consists of Federal Reserve Notes that are denominated in United States dollars (12 U.S.C. § 418).

The U.S. dollar is commodity money of silver as enacted by the Coinage Act of 1792 which determined the dollar to be 371 4/16 grain (24.1 g) pure or 416 grain (27.0 g) standard silver.Since the currency is the most used in international transactions, it is the world’s primary reserve currency.Several countries use it as their official currency, and in many others it is the de facto currency.Besides the United States, it is also used as the sole currency in two British Overseas Territories in the Caribbean: the British Virgin Islands and Turks and Caicos Islands. A few countries use the Federal Reserve Notes for paper money, while still minting their own coins, or also accept U.S. dollar coins (such as the Susan B. Anthony dollar).


Pound is the official currency of the United Kingdom, Jersey, Guernsey, the Isle of Man, South Georgia and the South Sandwich Islands, the British Antarctic Territory, and Tristan da Cunha.[6] It is subdivided into 100 pence (singular: penny, abbreviated: p). A number of nations that do not use sterling also have currencies called the pound. At various times, the pound sterling was commodity money or bank notes backed by silver or gold, but it is currently fiat money, backed only by the economy in the areas where it is accepted. The pound sterling is the world’s oldest currency still in use and which has been in continuous use since its inception.

The British Crown dependencies of Guernsey and Jersey produce their own local issues of sterling: the “Guernsey pound” and the “Jersey pound“. The pound sterling is also used in the Isle of Man (alongside the Manx pound), Gibraltar , the Falkland Islands , Saint Helena and Ascension Island in Saint Helena, Ascension and Tristan da Cunha (alongside the Saint Helena pound). The Bank of England is the central bank for the pound sterling, issuing its own coins and banknotes, and regulating issuance of banknotes by private banks in Scotland and Northern Ireland. Banknotes issued by other jurisdictions are not regulated by the Bank of England; local governments use Bank of England notes as backing for local issuance by allowing them to be exchanged 1:1 at face value.


Yena is the official currency of Japan. It is the third most traded currency in the foreign exchange market after the United States dollar and the euro. It is also widely used as a reserve currency after the U.S. dollar, the euro, and the pound sterling.

The concept of the yen was a component of the Meiji government’s modernization program of Japan’s economy; which postulated the pursuit of a uniform currency throughout the country modeled after the European decimal currency system. Before the Meiji Restoration, Japan’s feudal fiefs all issued their own money, hansatsu, in an array of incompatible denominations. The New Currency Act of 1871 did away with these and established the yen, which was defined as 1.5 g (0.048 troy ounces) of gold, or 24.26 g (0.780 troy ounces) of silver, as the new decimal currency. The former han (fiefs) became prefectures and their mints private chartered banks, which initially retained the right to print money. To bring an end to this situation the Bank of Japan was founded in 1882 and given a monopoly on controlling the money supply.

Following World War II the yen lost much of its prewar value. To stabilize the Japanese economy the exchange rate of the yen was fixed at ¥360 per $1 as part of the Bretton Woods system. When that system was abandoned in 1971, the yen became undervalued and was allowed to float. The yen had appreciated to a peak of ¥271 per $1 in 1973, then underwent periods of depreciation and appreciation due to the 1973 oil crisis, arriving at a value of ¥227 per $1 by 1980.


Dollar is the currency of Canada. It is abbreviated with the dollar sign $, or sometimes Can$or C$ to distinguish it from other dollar-denominated currencies. It is divided into 100 cents.

Owing to the image of a loon on the one-dollar coin, the currency is sometimes referred to as the loonie by foreign exchange traders and analysts, as it is by Canadians in general, or huard in French.

Canada’s dollar is the fifth most held reserve currency in the world, accounting for approximately 2% of all global reserves, behind only the U.S. dollar, the euro, the yen and the pound sterling. The Canadian dollar is popular with central banks because of Canada’s relative economic soundness, the Canadian government’s strong sovereign position, and the stability of the country’s legal and political systems.


Ruble is the currency of the Russian Federation, the two partially recognized republics of Abkhazia and South Ossetia, and the two unrecognized republics of Donetsk and Luhansk. The ruble is subdivided into 100 kopeks (sometimes written as kopecks or copecks; Russian: копе́йка kopeyka; plural: копе́йки kopeyki).

The ruble was the currency of the Russian Empire and of the Soviet Union (as Soviet ruble). Today apart from Russia, Belarus and Transnistria uses currencies with the same name. The ruble was the world’s first decimal currency: it was decimalised in 1704 when the ruble became legally equal to 100 kopeks.

In 1992 the Soviet ruble (code: SUR) was replaced with the Russian ruble (code: RUR) at the rate 1 SUR = 1 RUR. In 1998 following the financial crisis, the Russian ruble was redenominated with the new code “RUB”, and was exchanged at the rate of 1 RUB = 1,000 RUR. Today, although “RUB” being the official code of the Russian ruble, the code “RUR” is still widely used.