Pakistan is 21 times larger than Bhutan.
Area: 38,394 km2 World Factbook
Population: 733,643 (July 2014) World Factbook
Bhutan, officially the Kingdom of Bhutan, is a landlocked country in South Asia located at the eastern end of the Himalayas. It is bordered to the north by China and to the south, east and west by India. Wikipedia
Area: 796,095 km2 World Factbook
Population: 196,174,380 (July 2014) World Factbook
Pakistan officially the Islamic Republic of Pakistan, is a sovereign country in South Asia. With a population exceeding 180 million people, it is the sixth most populous country and with an area covering 796,095 km², it is the 36th largest country in the world in terms of area. Wikipedia