The average depth is 40 m (131 ft), and the maximum depth is 83 m (272 ft). The deepest part of the lake is in the east, near Kenya, and the shallower part is in the west along the Tanzanian coast.
The area of the lake is 68,800 km2, the maximum length is 337 km, the maximum width is 250 km, and the volume is 2,750 km3.