Rank |
Body of water |
Square miles (square kilometres) |
1 |
Pacific Ocean |
64,196,000 sq mi (166,266,877 km2) |
2 |
Atlantic Ocean |
33,400,000 sq mi (86,505,603 km2) |
3 |
Indian Ocean |
28,400,000 sq mi (73,555,662 km2) |
4 |
Southern Ocean |
20,327,000 sq mi (52,646,688 km2) |
5 |
Arctic Ocean |
5,100,000 sq mi (13,208,939 km2) |
6 |
Arabian Sea |
1,491,000 sq mi (3,861,672 km2) |
7 |
South China Sea |
1,148,000 sq mi (2,973,306 km2) |
8 |
Caribbean Sea |
971,000 sq mi (2,514,878 km2) |
9 |
Mediterranean Sea |
969,000 sq mi (2,509,698 km2) |
10 |
Bering Sea |
873,000 sq mi (2,261,060 km2) |
11 |
Bay of Bengal |
838,612 sq mi (2,171,995 km2) |
12 |
Gulf of Mexico |
582,000 sq mi (1,507,373 km2) |
13 |
Sea of Okhotsk |
537,000 sq mi (1,390,824 km2) |
14 |
Sea of Japan |
391,000 sq mi (1,012,685 km2) |
15 |
Hudson Bay |
282,000 sq mi (730,377 km2) |
16 |
East China Sea |
257,000 sq mi (665,627 km2) |
17 |
Andaman Sea |
218,100 sq mi (564,876 km2) |
18 |
Red Sea |
175,000 sq mi (453,248 km2) |
19 |
Black Sea |
168,500 sq mi (436,413 km2) |
20 |
North Sea |
165,000 sq mi (427,348 km2) |
21 |
Baltic Sea |
147,000 sq mi (380,728 km2) |
22 |
Yellow Sea |
113,500 sq mi (293,964 km2) |
23 |
Persian Gulf |
88,800 sq mi (229,991 km2) |
24 |
Adriatic Sea |
60,000 sq mi (155,399 km2) |
25 |
Gulf of California |
59,000 sq mi (152,809 km2) |