 Its length from north to south is 1,174 km, average width is 326 km, and total area is 375,000 km2.Water depth in the middle of the Caspian Sea ranges up to 788 m and in the southern part, up to 1,025 m. It has no outlet, and although the surface level of water fluctuates, it averages about 25 m below sea level according to recent measurements.Total area of the FSU portion of the Caspian Sea is 322,000 km2, including the shelf zone.