Reservoir
Rybinsk Reservoir
Natural Earth’s outline of the Rybinsk Reservoir measures about 4,740 km² (1,830 mi²), the 32nd largest of the 104 lakes on sizeversus, and 92% of the size of Trinidad and Tobago.
50 km
- Trinidad and Tobago
- Rybinsk Reservoir
The numbers
- 4,740km²Area, measured1,830 mi² · Natural Earth outline
- 4,580km²Area, publishedWikidata · 3.4% below our measure
- 28mGreatest depthaverage about 5.4 m
- 25.4km³VolumeWikidata
- 102mAbove sea levelSurface, Wikidata
The area is measured from the outline drawn above, on the WGS84 ellipsoid; the published figure is shown beside it, and a water body is kept only if the two are within 10%.
What the numbers say about the Rybinsk Reservoir
- The Caspian Sea (called a sea or a lake, depending on the definition), the largest of the 104 lakes ranked on sizeversus, is 80.1× the size of the Rybinsk Reservoir; the Rybinsk Reservoir ranks 32nd.
- The Rybinsk Reservoir sits between Lake Manitoba (4,840 km²) and Lake Taymyr (4,660 km²) in the ranking.
- It is a reservoir, made by a dam, and the 3rd largest of the 14 reservoirs in this ranking.
- Counted as a country, the Rybinsk Reservoir would be larger than 41 of the 212 countries listed on sizeversus and would rank 172nd by area, between Trinidad and Tobago (5,120 km²) and Cape Verde (3,930 km²).
- It is larger than 2 of the 51 US states and districts (the biggest of them is Rhode Island, 2,830 km²) and smaller than 49.
- It is smaller than every one of the 31 provinces and regions of China.
- The closest US state is Delaware (5,170 km²): the Rybinsk Reservoir is 92% of the size of Delaware.
- Wikidata records a greatest depth of 28 m; with its volume that gives an average depth of about 5.4 m.
- Wikidata records a volume of 25 km³. Poured over Trinidad and Tobago (5,120 km²), that water would stand 5.0 m deep.
- Its surface lies about 102 m above sea level (Wikidata).
- On a standard web map (Web Mercator), a place at 59°N is drawn about 3.7× too large in area, so the Rybinsk Reservoir looks bigger there than it is.
- Laid out flat, the Rybinsk Reservoir stretches about 134 km north to south and 116 km east to west.
- Our measured 4,740 km² is 3.4% above Wikidata’s published figure of 4,580 km². Published areas of lakes and seas move with the water level and with what is counted, so a few percent is expected.
About the same size as
Countries
Chinese provinces
On the shore
Natural Earth’s outlines of Russia contain or lie within 4 km of the outline of the Rybinsk Reservoir. That is what its geometry says, and it is not a statement about who owns the water or where any border runs in it.
Names
- Rybinsk Reservoirthe name in this page’s titlesource: Wikidata’s English label
- Rybinskalso calledsource: Natural Earth
Where the Rybinsk Reservoir ranks
The Rybinsk Reservoir is the 32nd largest of the 104 lakes on sizeversus, ranked by measured area.
Share this outline
Sources and method
- Outline
- Natural Earth, 1:10m Lakes + Reservoirs, public domain (Lakes + Reservoirs). Outlines of lakes are drawn at 1:10 million.
- Boundary
- A lake or a sea has no legal boundary of its own. The outline is a cartographic one, and the page says so by showing the measured area beside the published one.
- Area basis
- Measured outline: computed on the WGS84 ellipsoid from the full-detail outline and shown rounded. Published figure: Wikidata (CC0), fetched 2026-11-11. An outline is kept within 10% of the published figure and matched to other places automatically within 5%.
- Depth, volume, height
- As recorded in Wikidata; a volume that cannot be right for the area and depth is left out.
- Shore
- Countries whose Natural Earth outline contains or comes close to the water's outline; computed, not a statement of ownership.
- Drawing
- Each outline is projected with an equal-area projection centred on its own centroid, so areas stay true and two can be laid over each other.
- Data built
- 2026-11-11