In this paper, empirical relationships are derived to determine the mass and geometry of icebergs based on instrumental measurements and airborne data in the Barents, Kara and Laptev Seas. The authors give regression dependencies between 1D parameters of icebergs (length, width, height, draft); linear and area parameters of icebergs (cross-section area of the above and underwater parts of icebergs); linear iceberg parameters and its volume and mass. One can use the obtained empirical relations for the iceberg geometry and mass to simulate the drift of icebergs and to estimate their impact on offshore structures and vessels.