Five ocean of the world

Position	Name	Area (sq. km)
1	Pacific Ocean	155,557,000
2	Atlantic Ocean	76,762,000
3	Indian Ocean	68,556,000
4	Southern Ocean	20,327,000
5	Arctic Ocean	14,056,000

 1. PACIFIC OCEAN

The Pacific Ocean is in the area between the Americas and the Eurasia continental systems. Australia is in the southern part of this ocean.

The size of the Pacific is about 68.3 million square miles (165.25 million square miles). It is subdivided into two parts by the equator – The North and the South Pacific.

2. ATLANTIC OCEAN

Atlantic ocean 41.1 million surface area, the Atlantic is the second largest ocean after the Pacific. Almost 1/5th of the earth’s surface is under its water.

3. INDIAN OCEAN

The 3rd largest of all five oceans of the world, the Indian Ocean is named after India. It is the only ocean named after a country or rather a sub-continent. It is in the south of Asia and west of Africa.The area of the Ocean is 63 square miles (264 square Km). It takes 19.5% of earth’s surface. The average depth of it is 3890 meters or 12762 ft. The deepest point is 8,047 m (26,401 ft). 

4. SOUTHERN OCEAN

Southern Ocean is also called as the Antarctic Ocean. It is the part of the World Ocean encircling Antarctica. Sometimes, it is considered merely as a part of the Atlantic, Indian, and the Pacific Ocean.The northern limit of it is 60 degrees south. It is a very cold ocean with floating icebergs. The water is completely different from other larger oceans.The depth of this ocean is around 13000 to 16000 feet in most of the places .It has the deepest point at 7,236 m (23,740 ft) under the sea level.

5.  ARCTIC OCEAN

The Arctic Ocean is around the North Pole of the earth. It is the smallest and shallowest of all oceans. Some oceanographers do not consider it as a ocean. They prefer the term Arctic sea.   
The Arctic is mostly surrounded by Asia, Europe and North America. Maximum part of the ocean becomes frozen solid during the winter.
The water of Arctic lacks salinity. The ice covered water is flooded by the big rivers of Siberia. But the ice cover of the ocean is shrinking due to global warming. It has been observed that the rate of disappearance of ice cover is 3% per decade. It occupies an area of 5.4 million sq ml or 14 million km2. The ocean is surrounded by Russia, Norway, Greenland, Canada and Alaska.