Largest Sea in the World

Philippine Sea, 2,000,000sq miles, 5,177,762sq kms is the World's largest Sea.

World Ocean map

Water covers over 70 percent of the Earth's surface, with the largest body of water, the Pacific Ocean, occupying more than one third of the planet's surface.

All Earth's oceans is estimated to have a volume of 0.3 million cubic kilometers (1,332 million cubic kilometers) and an average depth of 12,080.7 feet (3682.2 meters). However, the different bodies of water that make up the total ocean area have their own characteristics and the surface varies from sprawling Pacific to the Mediterranean autonomous.

Here are the top 10 world's oceans and seas, measured as the surface area in square kilometers (km ²).

Philippine Sea the largest,biggest and longest Sea /Ocean of the World

The Philippine Sea is bordered by the Philippines and Taiwan to the west, Japan to the north, the Marianas to the east and Palau to the south. Adjacent seas include Celebes Sea which is separated by Mindanao and smaller islands to the south, South China Sea which is separated by Philippines, and East China Sea which is separated by the Ryukyu Islands.

The Philippine Sea is a marginal sea east and north of the Philippines occupying an estimated surface area of 2 million mi² (5 million km²) on the western part of the North Pacific Ocean. It is bordered by the Philippine archipelago (Luzon, Samar, Leyte and Mindanao) on the southwest; Palau, Yap, and Ulithi (of the Carolines) on the southeast; the Marianas, including Guam, Saipan, and Tinian, on the east; the Bonin and Iwo Jima on the northeast; the Japanese islands of Honshu, Shikoku, and Kyūshū on the north; the Ryukyu Islands on the northwest; and Taiwan in the west.

The sea has a complex and diverse undersea relief. The floor is formed into a structural basin by a series of geologic faults and fracture zones. Island arcs, which are actually extended ridges protruding above the ocean surface due to plate tectonic activity in the area, enclose the Philippine Sea to the north, east and south. The Philippine archipelago, Ryukyu Islands, and the Marianas are examples. Another prominent feature of the Philippine Sea is the presence of deep sea trenches, among them the Philippine Trench and the Mariana Trench, containing the deepest point on the planet.

Philippine Sea hosts foreign marine environment. About five hundred varieties of hard and soft corals occur in coastal waters and 20 percent of worldwide known shellfish species found in Philippine waters. Sea turtles, sharks, Moray eels, octopuses and sea snakes and a variety of fish as well as we can usually be observed. Additionally, the Philippine Sea serves as spawning center for Japanese eel, tuna and different whale species.

List of other Largest Seas in the World

       Name                               Area sq km             sq ml      

1. Coral Sea -                       4,791,000                  1,850,000 
2. Arabian Sea                     3,863,000                   1,492,000     
3. S China ( Nan) Sea-          3,685,000                   1,423,000
4. Mediterranean  -               2,516,000                    9,71,000
5. Bering Sea-                     2,304,000                    8,90,000  
6. Bay of Bengal                  2,172,000                     839,000
7. Sea of Okhotsk               1,590,000                     614,000
8. Culf of Mexico                 1,543,000                     596,000
9. Gulf of Guinea                 1,533,000                     592,000
10. Barents Sea                    1,405,000                    542,000
11. Norwegian Sea                1,383,000                    534,000

 Note: Ocean are excluded..Areas are rounded to the nearest 1,000 sq km/sq km.