`M = "V" * rho `

Enter a value for all fields

This Mass calculator computes the mass (M) of an object based on the density (ρ) and volume (V).

INSTRUCTIONS: Choose your preferred units and enter the following:

• (ρ) mean density of the object
• (V) volume of the object

Mass (M): The calculator returns the mass in kilograms.  However, this can be automatically converted to other mass or weight units via the pull-down menu.

Related Calculators:

• To compute density from volume and mass, CLICK HERE.
• To compute volume from density and mass, CLICK HERE.
• To lookup the density of many substances,  CLICK HERE.

The Math

The relationship between mass, volume and density is shown in the following equation for mass based on density and volume:

            M = ρ • V

where:

• M is the mass
• ρ is the density
• V is the volume

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Common Mean Densities

Fluids Pure Water - 1,000 kg/m³  Seawater - 1,022 kg/m³  Milk - 1,037 kg/m³  Olive Oil - 860 kg/m³ Cement Slurry - 1,442 kg/m³  Fuels Diesel Fuel - 885 kg/m³  Crude Oil - 870 kg/m³  to 920 kg/m³  Fuel Oil -  890 kg/m³  Ethanol - 789 kg/m³  Gasoline (petrol) - 737 kg/m³  Propane - 493 kg/m3 Liquid Natural Gas - 430 to 470 kg/m3 Market-Ready Grains Corn - 56 lb/bu (721 kg/m3) Wheat - 60 lb/bu (772 kg/m3) Barley - 48 lb/bu (618 kg/m3) Oats - 32 lb/bu (412 kg/m3) Rye - 56 lb/bu (721 kg/m3) Soybean - 60 lb/bu (772 kg/m3)

Metals Aluminum - 2700 kg/m³ Brass - 8530 kg/m³ Bronze - 8150 kg/m³ Chromium - 7190 kg/m3 Cobalt - 8746 kg/m3 Copper - 8920 kg/m³ Gallium - 5907 kg/m3  Gold - 19300 kg/m³ Iridium - 22560 kg/m3 Iron - 7847.0 kg/m³  Lead - 11340 kg/m³ Molybdenum - 10280 kg/m3 Nickle - 8908  kg/m3  Palladium -  12160 kg/m³ Platinum - 21450.0 kg/m³ Rhodium - 12410 kg/m3 Steel - 7850 kg/m³ Silver - 10490 kg/m³ Titanium - 4500 kg/m³ Tungsten - 19600 kg/m³ Zinc - 7135 kg/m³ Zirconium - 6570 kg/m³

Mean Density is the average amount of mass within a volume for a substance.  Note, volume of a material is often highly subject to the temperatures, since materials expand as they warm.  For that reason, mean densities of substances are often cited with a set of nominal conditions such as temperature and barometric pressure. 

The formula for mean density is:

μD = V / m

where:

• μD = mean density
• V = Volume in units like cubic meters or cubic inches
• m = Mass in units like kilograms or pounds

Mean density is also often indicated as the Greek symbol rho (ρ).

Mass and Weight

Density is a function of mass.  However, converting from mass to weight is trivial under the right conditions.  Fortunately those conditions are generally true anywhere on the surface of the Earth, so the conversions built into the vCalc engine can be assumed to be fairly accurate unless you require weight at very high altitudes or in space.

CLICK HERE  for a pop-up function that provides the mean density (mD or μD) of many common substances, elements, liquids and materials.

Mean Density Units

Mean density is scientifically volume divided by mass.  There are  various unit for density adopted by cultures and industries. Common units for density included the following:

• kilograms per cubic meter (kg/m³)
• grams per cubic centimeter (g/cm³)
• grams per liter (g/L)
• pounds per cubic feet (lb/ft³)
• ounces per cubic inch (oz/in³)
• pounds per barrel (lb/bbl)
• pounds per bushel (lb/bu)

vCalc provides for automatic conversions between density units via the pull-down menus.

 

References

• Light and Matter(Dr. Benjamin Crowell) Chapter 1.2 Scaling of Area and Volume