Gulf of Bothnia at a glance
- 55 maverage depth
- 50 mmedian depth
- 298 mmaximum depth
- 112,153 km²water area
Gulf of Bothnia is a gulf. Inside its outline the GEBCO grid has about 112,153 km² of water, with an average depth of about 55 m (the middle value is 50 m) and a maximum of 298 m, found at 60.18° N, 19.16° E.
Open the map at the deepest cell and tap to read the depth.
How deep is each part of the Gulf of Bothnia?
The bar splits the Gulf of Bothnia's water by depth. Each colour is a depth band, and the shares add up to 100%.
- 0 to 200 m: 99.5%
- 200 to 1,000 m: 0.5%
- 1,000 to 4,000 m: 0%
- 4,000 to 6,000 m: 0%
- below 6,000 m: 0%
Named features near the deepest point: Landsort Deep (183 km), Gotland Deep (322 km), Viking-Bergen Banks (959 km), Vøring Plateau (1,028 km).
The Gulf of Bothnia if sea level dropped
The slider on the map lowers the sea in steps. This table shows how much of the Gulf of Bothnia's water would be land at each step.
| Sea level lowered by | Becomes land | Share of its water |
|---|---|---|
| 10 m | 14,021 km² | 12.5% |
| 20 m | 27,447 km² | 24.5% |
| 50 m | 55,816 km² | 49.8% |
| 80 m | 83,339 km² | 74.3% |
| 120 m | 105,468 km² | 94% |
| 200 m | 111,631 km² | 99.5% |
| 500 m | 112,153 km² | 100% |
| 1,000 m | 112,153 km² | 100% |
| 2,000 m | 112,153 km² | 100% |
| 3,000 m | 112,153 km² | 100% |
| 4,000 m | 112,153 km² | 100% |
| 6,000 m | 112,153 km² | 100% |
A simple bathtub model: it lowers the sea everywhere by the same amount and does not simulate how water would really drain.
Nearby seas
- Baltic Sea average depth about 66 m
- Kattegat average depth about 27 m
- White Sea average depth about 57 m
- Norwegian Sea average depth about 1,684 m
- North Sea average depth about 78 m
- Barents Sea average depth about 203 m
Nearest by the centre of each outline. All oceans and seas
Frequently asked questions
How deep is the Gulf of Bothnia?
On average about 55 m in the GEBCO grid (the middle value is 50 m). The deepest cell inside its outline is 298 m, at 60.18° N, 19.16° E.
How big is the Gulf of Bothnia?
About 112,153 km² of water inside its Natural Earth outline, counted from the grid cells that are below sea level.
How much of the Gulf of Bothnia would be land if sea level dropped?
With the sea 10 m lower, about 14,021 km² (12.5%) of its water would be land. At 6,000 m lower, 100% would be. This is a simple bathtub model that lowers the sea evenly everywhere.
Data: depths from the GEBCO_2026 grid, statistics worked out inside the Natural Earth outline of the gulf. See data sources and licences. The GEBCO Grid should NOT be used for navigation or for any other purpose involving safety at sea.