Convert between common density units instantly
This density converter supports seven common density units: kilograms per cubic meter (kg/m³), grams per cubic centimeter (g/cm³), grams per milliliter (g/mL), kilograms per liter (kg/L), pounds per cubic foot (lb/ft³), pounds per cubic inch (lb/in³), and grams per liter (g/L). The default value of 1000 kg/m³ represents the density of water, making it easy to see how other materials compare.
Select the density unit you are starting with, enter the value, and click "Convert" to see the equivalent density in all supported units. Use this tool for material science, fluid mechanics, construction, and any application requiring density unit conversions.
Water has a density of approximately 1000 kg/m³, which equals 1 g/cm³, 1 g/mL, 1 kg/L, 62.43 lb/ft³, 0.0361 lb/in³, or 1000 g/L. This makes water a convenient reference point — materials denser than water sink, while less dense materials float.
Multiply g/cm³ by 1000 to get kg/m³. For example, aluminum at 2.7 g/cm³ equals 2700 kg/m³. Conversely, divide kg/m³ by 1000 to get g/cm³. This is because 1 g/cm³ = 1000 kg/m³ (there are 1,000,000 cm³ in 1 m³ and 1000 g in 1 kg).