Tanzania is 6.4 times larger than Nepal.
Area: 147,181 km2 World Factbook
Population: 30,986,975 (July 2014) World Factbook
Nepal, officially the Federal Democratic Republic of Nepal, is a landlocked sovereign nation located in South Asia. With an area of 147,181 square kilometres and a population of approximately 27 million, Nepal is the world's 93rd largest country by land mass and the 41st most populous country. Wikipedia
Area: 947,300 km2 World Factbook
Population: 49,639,138 (July 2014) World Factbook
Tanzania, officially the United Republic of Tanzania, is a country in East Africa in the African Great Lakes region. It is bordered by Kenya and Uganda to the north; Rwanda, Burundi and the Democratic Republic of the Congo to the west; and Zambia, Malawi and Mozambique to the south. Wikipedia