The Indian Ocean is the no. 3rd contiguous open water surface on earth. It has a huge, 26,469,500 square mile (68,556,000 square km) area and 13,002 square feet (3,963 square meters) average depth. The Indian Ocean’s greatest known depth is 24,46 feet (7,455 meters), which can be found at Sunda Trench.
The International Hydrographic Organization’s decision to delimit a fifth ocean, the Southern Ocean, removed the portion of the Indian Ocean south of 60 degrees south latitude.