What is the depth of Mariana Trench?

Mariana Trench, also called Marianas Trench, deep-sea -trench in the floor of the western North Pacific Ocean, the deepest such trench known on Earth, located mostly east as well as south of the Mariana Islands.
In 1957, during the International geophysical year, the Soviet research ship Vityaz sounded a new world record depth of 36,056 feet (10,990 metres) in Challenger Deep.
That value was later increased to 36,201 feet (11,034 meters).
Source: www.britannica.com