Density Calculator

Calculate density as mass per unit volume while preserving the measurement units selected for the entered mass and volume.

Calculate density

Density: 2.5The result uses the mass unit divided by the volume unit entered.

How this tool works

Density relates the amount of mass to the space it occupies. This unit-neutral calculator performs the numerical division and reminds users that the output unit is determined entirely by the mass and volume units they supply.

Density ρ equals mass m divided by volume V. A valid density calculation requires a positive non-zero volume and consistent interpretation of the input units.

How to use it

  1. Enter a positive mass measurement.
  2. Enter a positive non-zero volume measurement.
  3. Label the result using the entered mass unit divided by the entered volume unit.

Worked examples

Mass in grams

Input
500 g and 200 cm³
Output
2.5 g/cm³

Dividing the 500-unit mass by the 200-unit volume produces 2.5 mass units for every unit of volume.

Kilogram and litre example

Input
6 kg and 3 L
Output
2 kg/L

The numerical ratio is six divided by three. Because the calculator does not convert units, the result retains kilograms per litre.

Limitations

  • The calculator does not convert between measurement systems.
  • Temperature, pressure, porosity, and measurement uncertainty can affect physical density.