Mjøsa is the 2^nd largest lake by water volume in the Scandinavia at 56 km³.

Spanning a surface area of 362 km², Mjøsa contains up to 56 km³ of water and reaches a maximum depth of 449 meters.

It spans 117 km on its length. Countries along its shoreline in Europe: Norway.

Lake Mjøsa's surface area is 2, 7 times wider and its volume 4.5 times larger than Hornindalsvatnet Lake, Norway's and Europe's deepest lake. The lake also contains the island of Helgøya. 

 Compare Mjøsa with Vänern from Sweden.

 Compare Mjøsa with Salvatnet from Norway.