Europe is, by convention, one of the world's seven continents. It is the world's second-smallest continent by surface area, covering about 10,180,000 square kilometres (3,930,000 sq mi) or 2% of the Earth's surface and about 6.8% of its land area. Of Europe's approximately 50 countries, Russia is by far the largest by both area and population, taking up 40% of the continent (although the country has territory in both Europe and Asia), while Vatican City is the smallest. Europe is the third-most populous continent after Asia and Africa, with a population of 739-743 million or about 11% of the world's population. The most commonly used currency is the euro.
Area: 10,180,000 km2 (3,930,000 sq mi)[n]
Population: 742,452,000[n] (2013, 3rd)
Pop. density: 72.9/km2 (about 188/sq mi)
Countries: 50 (and 6 disputed) (list of countries)
Time zones UTC to UTC+6
Internet TLD: .eu (European Union)