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Calculate density, mass, or volume using rho = m / V. Supports multiple unit systems.
Density Formulas:
Density (rho) = Mass / Volume
Mass = Density x Volume
Volume = Mass / Density
Rho (rho) is the symbol for density. SI unit is kg/m3. Water at 4 C has a density of 1,000 kg/m3 (1 g/cm3).
Density is mass per unit volume (rho = m/V). A substance with high density has more mass packed into the same space. Lead is denser than wood.
Water at 4 C has a density of 1,000 kg/m3 or 1 g/cm3. At room temperature (25 C) it is approximately 997 kg/m3.
Dry air at sea level and 20 C has a density of approximately 1.2 kg/m3. This is about 830 times less dense than water.
Ice has a density of about 917 kg/m3, which is less than liquid water (1,000 kg/m3). Water expands when it freezes, so the same mass occupies more volume.
Density measurements are used in quality control, material identification, fluid mechanics, buoyancy calculations, and determining concentrations of solutions.