The American continent consists of two continents and the largest island in the world, North America, South America and Greenland. Central America and the Caribbean are usually considered part of North America. The double continent is situated entirely in the Western Hemisphere, bounded by the Pacific Ocean in the west, the Atlantic Ocean in the east, the Arctic Ocean in the north, and the Southern Ocean in the south. Measured from the northernmost point of Greenland to the southernmost point of South America, it is 15,600 km as the crow flies, making America the most elongated landmass in the world.
美洲大陆由两大洲和世界上最大的岛屿组成：北美洲、南美洲和格陵兰岛。中美洲和加勒比地区通常被认为是北美洲的一部分。双大陆完全位于西半球，西临太平洋，东临大西洋，北临北冰洋，南临南大洋。从格陵兰岛最北端到南美洲最南端，直线距离为 15,600 公里，使美洲成为世界上最细长的陆地。