United Kingdom is 85% larger than Greece.
Area: 243,610 km2 World Factbook
Population: 63,742,977 (July 2014) World Factbook
The United Kingdom of Great Britain and Northern Ireland, commonly known as the United Kingdom or simply Britain, is a sovereign state located off the north-western coast of continental Europe. Wikipedia
Area: 131,957 km2 World Factbook
Population: 10,775,557 (July 2014) World Factbook
Greece, officially the Hellenic Republic and known since ancient times as Hellas, is a country in Southern Europe. According to the 2011 census, Greece's population is around 11 million. Athens is the nation's capital and largest city. Wikipedia