The reservoir is 240 km long, up to 23 km wide, and has an average depth of 8.4 meters (with depth varying from 3 to 26 m). The total water volume is 18.2 km³. It is mainly used to supply hydroelectric stations, the Krasnoznamianka Irrigation System and the Kakhivka Irrigation System, industrial plants, freshwater-fish farms, the North Crimean Canal and the Dnieper–Kryvyi Rih Canal. With its creation, it has created a deep-water route, allowing deep-sea ships to sail up the Dnieper.
The lands of the former Zaporizhian Host now lie under the Kakhovka Reservoir.