Turkey is 20% larger than Afghanistan.
Area: 652,230 km2 World Factbook
Population: 31,822,848 (July 2014) World Factbook
Afghanistan, officially the Islamic Republic of Afghanistan, is a landlocked country located in Central Asia and South Asia. It has a population of around 31 million people making it the 42nd most populous country. Wikipedia
Area: 783,562 km2 World Factbook
Population: 81,619,392 (July 2014) World Factbook
Turkey, officially the Republic of Turkey, is a contiguous transcontinental country. Its larger part is in Western Asia, and the smaller in Southeastern Europe. Wikipedia