Mariana Trench Depth in Centimeters: The Deepest Point on Earth
The Mariana Trench in the western Pacific Ocean contains Challenger Deep, the deepest known point on Earth's seabed.
Depth Conversion
| Unit | Value |
|---|
| Meters | 10,935 m (2021 multibeam sonar consensus) |
| Centimeters | 1,093,500 cm (10,935 × 100) |
| Kilometers | 10.935 km |
| Feet | 35,876 ft |
| Miles | 6.79 mi |
Note: Earlier measurements gave 11,034 m (11,034,000 cm); modern high-resolution surveys converge on ~10,925-10,935 m.
Challenger Deep Context
- Location: 11.329°N, 142.199°E (Mariana Trench, ~320 km SW of Guam)
- Named for: HMS Challenger (1875 first sounding: 8,184 m)
- Pressure: ~1,100 atmospheres (110 MPa / 16,000 psi) — 1,100× surface
- Temperature: 1-4°C (near freezing)
- Life: Amphipods, xenophyophores, microbes, hadal snailfish (Pseudoliparis swirei at 8,178 m)
Human Visits
| Year | Vehicle | Occupants | Depth |
|---|
| 1960 | Trieste (bathyscaphe) | Jacques Piccard, Don Walsh | 10,916 m |
| 2012 | Deepsea Challenger | James Cameron | 10,908 m |
| 2019 | DSV Limiting Factor | Victor Vescovo (+ 4 others on 5 dives) | 10,928 m |
| 2020 | Fendouzhe (Striver) | Chinese crew | 10,909 m |
Geological Origin
- Subduction Zone: Pacific Plate subducting under Philippine Sea Plate
- Convergence Rate: ~8-10 cm/yr
- Trench Length: 2,550 km (1,580 mi)
- Age of Subducting Crust: ~180 Ma (Jurassic) — among oldest oceanic crust
Comparison
- Mt. Everest (8,849 m) would fit inside with 2,086 m (6,844 ft) to spare
- Commercial airliners cruise at ~10-12 km — similar altitude
- Only ~27 people have reached bottom; 600+ have summited Everest
Wanderlust World