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The Density of a substance is its mass per unit volume. It is also known as the volumetric mass density. The symbol most often used for density is ρ (the lower case Greek letter rho), although the Latin letter D can also be used.  The density of a material varies with temperature and pressure. This variation is typically small for solids and liquids but much greater for gases.  Increasing the temperature of a substance (with a few exceptions) decreases its density by increasing its volume.

Mean density, or more precisely, the mean volumetric mass density, of a substance is the average mass per unit volume of a substance in its most common or naturally occurring state.  The vCalc symbol for mean density is `muD`.  The standard units for mean density are kilograms per cubic meter.  However, vCalc provides automatic conversions to other units via the pull-down menu including (lb/ft3) pound per cubic foot, (g/cm3) grams per cubic centimeter, (t/m3) metric tons per cubic meter, (ton/yd3): tons (U.S.) per cubic yard, (oz/in3) ounces per cubic inch.  For a quick lookup of mean density of substances click HERE.

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Density Calculators

Density Equations

  • Common Mean Densities by vCalc
  • Density by vCalc
  • vDensity by vCalc
  • Absolute Pressure by Billy
  • Actual Head Rise of a Pump or Fan by TeddyCamelus
  • Air Density Behind the Shock Front by cataustria
  • Archimedes number by EmilyB
  • Buoyancy Equation by Dasha
  • Density by ekskekel
  • Density of Lumber by KurtHeckman
  • Ecuación de Flotación by smcmstudent
  • Generic Weight Calculation by KurtHeckman
  • meanDensity Lookup by KurtHeckman
  • Sand Density by KurtHeckman
  • Sand Weight by KurtHeckman
  • Snow Water Density (SWD) by KurtHeckman
  • Snow Water Equivalent (SWE) by Titan
  • Snow Weight - Area by KurtHeckman
  • Snow Weight - Area (polygon) by KurtHeckman
  • Snow Weight - Area (rectangle) by KurtHeckman
  • Void Ratio by TeddyCamelus
  • Weight of Lumber (Volume) by KurtHeckman
  • Weight of Wood Boards by KurtHeckman

Density Constants