Europe is, by convention, one of the world's seven continents. Europe is the world's second-smallest continent by surface area, covering about 10,180,000 sq. km or 2% of the Earth's surface and about 6.8% of its land area. Of Europe's approximately 50 states, Russia is the largest by both area and population, while the Vatican City is the smallest. Europe is the third-most populous continent after Asia and Africa, with a population of 733 million or about 11% of the world's population. (source)
Thank you Wilma!