The Atlantic Ocean is the second-largest of the world's five oceanic divisions, with an area of about 85,133,000 km². It covers approximately 17% of Earth's surface and about 24% of its water surface area. During the Age of Discovery, it was known for separating the New World of the Americas from the Old World of Afro-Eurasia.
Basin countries: List of bordering countries (not drainage basin), ports
Surface area: 85,133,000 km² (32,870,000 sq mi) · North Atlantic: 41,490,000 km² (16,020,000 sq mi) · South Atlantic 40,270,000 km² (15,550,000 sq mi)
Average depth: 3,646 m (11,962 ft)
Max. depth: Puerto Rico Trench · 8,376 m (27,480 ft)
Water volume: 310,410,900 km³ (74,471,500 cu mi)
Shore length: 111,866 km (69,510 mi) including marginal seas
Islands: List of islands
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