What is the largest ocean in the world?

Thank you for asking ! The largest ocean in the world is the Pacific Ocean , which covers an area of approximately 1 5 5 . 6 million square kilom eters ( 6 0 . 1 million square miles ) and accounts for approximately 4 6 % of the Earth ' s total ocean area . It is also the deep est ocean , with a maximum depth of about 1 1 , 0 2 2 meters ( 3 6 , 1 9 8 feet ) in the Mar iana T rench . </s>