What is the largest ocean in the world?

The largest ocean in the world is the Pacific Ocean . It covers an area of approximately 6 3 , 8 0 0 , 0 0 0 square miles ( 1 6 5 , 2 0 0 , 0 0 0 square kilom eters ) and is the deep est of the world ' s five o ce ans , with a maximum depth of approximately 3 6 , 0 0 0 feet ( 1 1 , 0 0 0 meters ). The Pacific Ocean is border ed by the coast s of North and South America , Asia , and Australia , and is home to a diverse range of marine life , including wh ales , dol ph ins , and cor al re ef s . </s>