PhySP18SS6.1.9 From the Buoyancy Presentation: From Wiki: The density of ice is 0.9167 g/cm3 at 0 °C, whereas water has a density of 0.9998 g/cm3 at the same temperature. Liquid water is densest, essentially 1.00 g/cm3, at 4 °C and becomes less dense as the water molecules begin to form the hexagonal crystals of ice as the freezing point is reached. So about 10% of the Iceberg will stick up above the ocean, depending of the temperature and salinity of the ocean water.