The Mariana Trench is approximately 7 miles deep, with its deepest point, known as the Challenger Deep, reaching about 6.8 to 7 miles (around 36,000 feet or roughly 11 kilometers) below sea level
. This depth makes it the deepest known part of the world's oceans, deeper than the height of Mount Everest
. The exact measurements vary slightly depending on the method and expedition, but the consensus places the maximum depth close to 7 miles.
