Brazil is the world's fifth-largest country by area, covering approximately 8.5 million square kilometers (about 3.3 million square miles). It spans roughly 4,395 kilometers (2,731 miles) from north to south, making it the longest country in the world. Brazil occupies about 47.3% of South America's land area and has a coastline of 7,491 kilometers (4,655 miles) along the Atlantic Ocean. It borders every South American country except Ecuador and Chile. This vast size makes Brazil the largest country in both South America and the Southern Hemisphere.