Randsfjorden is Norway's fourth largest lake with an area of 138 km². Its volume is estimated at just over 7 km³, and its greatest depth is 120 meters. The lake is 135 meters above sea level. It is located in the county of Oppland and borders to the municipalities of Gran, Jevnaker, Nordre Land, and Søndre Land in the landscapes of Land and Hadeland.