Peru is 9.9 times larger than Nicaragua.
Area: 130,370 km2 World Factbook
Population: 5,848,641 (July 2014) World Factbook
Nicaragua, officially the Republic of Nicaragua, is the largest country in the Central American isthmus, bordering Honduras to the north and Costa Rica to the south. Wikipedia
Area: 1,285,216 km2 World Factbook
Population: 30,147,935 (July 2014) World Factbook
Peru, officially the Republic of Peru, is a country in western South America. It is bordered in the north by Ecuador and Colombia, in the east by Brazil, in the southeast by Bolivia, in the south by Chile, and in the west by the Pacific Ocean. Wikipedia