Mariana Trench (depth): how big is it?
Mariana Trench (depth) is about 10.9 km. In everyday terms, that is ≈ 1.2 Mount Everests.
- Size
- 10.9 km
- In metres
- 1.09 × 10⁴ m
- Everyday comparison
- ≈ 1.2 Mount Everests
- Chapter
- Landscapes
Did you know?
The deepest point in the ocean. Drop Everest in and its peak would still be about 2 km underwater.
How it compares
- Roughly the same size as Dinosaur-killing asteroid (10 km).
- About 2.7× smaller than Bengaluru (across) (30 km).
Other things of a similar size
- Bandra–Worli Sea Link 5.6 km
- Mount Everest 8.85 km
- Dinosaur-killing asteroid 10 km
- Bengaluru (across) 30 km
- Marathon 42.2 km
- Edge of space (Kármán line) 100 km
Sizes are rounded, typical values drawn from standard reference sources, including NIST/CODATA physical constants and NASA's planetary fact sheets. Real objects vary; see About for how sizes are chosen.