In Russia 2747997 lakes with total area of ​​408 856 km² (excluding the Caspian Sea). The largest lake - the Caspian Sea. Of the lakes in the traditional sense of the largest in the area are Baikal (31,722 km²), Lake Ladoga (17 872 km²), Onega (9693 km²) and Taimyr (4560 km²), and by the volume: Lake Baikal (23,516 km³), Lake Ladoga (838 km³), Onega (292 km³) and Khantayskoye (82 km³), with about 96% of all stocks of lake water is concentrated in eight major lakes, of which 95.2% is only one Baikal. On the territory of Russia are in operation about 30 thousand regulating river runoff water reservoirs and ponds with overall volume of more than 800 km³. The coastline only reservoirs is 75.4 thousand km. By area, the water table of the ten largest reservoirs of the world are Kuibyshev (6150 km²), Bratsk (5470 km²), Rybinsk (4550 km²), Volgograd (3117 km²) and Krasnoyarsk (2000 km²).