How deep is the Mariana Trench, in feet?

Science medium Data from 2023

Guess before you scroll — the answer is below

Answer in feet. Shorthand like 9m or 1.2bn works.

The answer

36,070 feet

Roughly 36.1K.

The Challenger Deep bottoms out around 36,070 feet — deeper than Mount Everest is tall, with over a mile to spare. The pressure there is roughly 1,100 times that at sea level. More people have walked on the Moon than have reached the bottom.

Where this number comes from

Source NOAA Office of Ocean Exploration
Figure refers to 2023
Last checked
Unit feet

Numbers move. If this one has drifted from its source, let us know.

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