Turkmenistan is 642 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: 488,100 km2 World Factbook
Population: 5,171,943 (July 2014) World Factbook
Turkmenistan, formerly known as Turkmenia, is one of the Turkic states in Central Asia. Turkmenistan is bordered by Kazakhstan to the northwest, Uzbekistan to the northeast and east, Afghanistan to the southeast, Iran to the south and southwest, and the Caspian Sea to the west. Wikipedia