United Kingdom is 321 times larger than Bahrain.
Area: 760 km2 World Factbook
Population: 1,314,089 (July 2014) World Factbook
Bahrain, officially the Kingdom of Bahrain is a small island country situated near the western shores of the Persian Gulf. It is an archipelago with Bahrain Island, the largest land mass, at 55 km long by 18 km wide. Wikipedia
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