Important Oceans of the world – [General Knowledge]

By: Prof. Dr. Fazal Rehman Shamil | Last updated: January 22, 2025

OceanSize (Area)Depth (Average)Deepest PointLocationNotable Feature
Pacific Ocean63.8 million sq. miles (165.25 million sq. km)12,080 feet (3,682 meters)Mariana Trench (36,070 feet / 10,994 meters)Between Asia, Australia, North America, and South AmericaLargest and deepest ocean in the world
Atlantic Ocean41.1 million sq. miles (106.46 million sq. km)10,930 feet (3,332 meters)Puerto Rico Trench (28,374 feet / 8,648 meters)Between the Americas, Europe, and AfricaSecond largest ocean, rich in marine life
Indian Ocean27.2 million sq. miles (70.56 million sq. km)12,080 feet (3,741 meters)Sunda Trench (24,460 feet / 7,450 meters)Between Africa, Asia, Australia, and the Indian subcontinentKnown for trade routes and warm water
Southern (Antarctic) Ocean7.8 million sq. miles (20.33 million sq. km)10,000 feet (3,048 meters)South Sandwich Trench (23,737 feet / 7,235 meters)Surrounds AntarcticaColdest ocean, distinct marine ecosystems
Arctic Ocean5.4 million sq. miles (14.05 million sq. km)3,953 feet (1,205 meters)Fram Basin (17,880 feet / 5,450 meters)Around the Arctic regionSmallest and shallowest ocean, covered with ice in some areas