Soil particle specific gravity calculator

Calculate particle specific gravity and particle density with your own figures.

Your numbers

Use the units shown. Results update as you change valid inputs.

Use particle specific gravity and particle density to compare changes to your inputs. The method and limits below explain the scope.

Examples

Examples

Try the starting example

Pycnometer empty mass (g)
50
Pycnometer plus dry soil (g)
100
Pycnometer plus soil plus water (g)
180
Pycnometer filled with water only (g)
150
Water density at test temperature (g/cm³)
0.998
Particle specific gravity
2.5
Particle density (g/cm³)
2.495

Try another scenario

Pycnometer empty mass (g)
51
Pycnometer plus dry soil (g)
100
Pycnometer plus soil plus water (g)
180
Pycnometer filled with water only (g)
150
Water density at test temperature (g/cm³)
0.998
Particle specific gravity
2.578947
Particle density (g/cm³)
2.573789
Calculation method

Calculation method

Particle specific gravity

Gs=(soil dry mass)/(soil dry mass + water-only filled mass − soil/water filled mass), no temperature correction beyond entered density.

Particle density (g/cm³)

Gs=(soil dry mass)/(soil dry mass + water-only filled mass − soil/water filled mass), no temperature correction beyond entered density.

Symbols and units
a
Pycnometer empty mass (g)
b
Pycnometer plus dry soil (g)
c
Pycnometer plus soil plus water (g)
d
Pycnometer filled with water only (g)
e
Water density at test temperature (g/cm³)

Use the units shown. A list keeps the order in which you enter its values. The symbol ^ means “raised to the power of”.

Assumptions & limits

Assumptions & limits

  • User-supplied measurements and assumptions; Gs=(soil dry mass)/(soil dry mass + water-only filled mass − soil/water filled mass), no temperature correction beyond entered density. Supported limits: Finite numeric values bounded to 1e9 magnitude; lists and tables contain 1–100 records unless a stricter bound is stated. Inputs use the units shown. Lists explicitly paired by a method must have matching lengths; independent polynomial coefficient vectors may differ. Respect stated physical, interpolation, policy and computational domain limits.
Are these inputs private?

These calculations run in your browser. A shared link contains the values you choose to share. Only questions submitted to the separate AI finder are sent to OpenAI.

Further reading

Method reference ↗

Background reading; this does not imply endorsement or independent review of SumFizz.

Share this page
Share this calculator

Leave unchecked to share the page without your entered values.