Geological porosity saturation test calculator

Calculate connected porosity and dry bulk density with your own figures.

Your numbers

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

Use connected porosity and dry bulk density to compare changes to your inputs. The method and limits below explain the scope.

Examples

Examples

Try the starting example

Dry mass (g)
100
Saturated-surface-dry mass (g)
108
Apparent submerged saturated mass (g)
65
Water density (g/cm³)
0.9982
Connected porosity (%)
18.604651
Dry bulk density (g/cm³)
2.321395
Bulk volume (cm³)
43.07754

Try another scenario

Dry mass (g)
100
Saturated-surface-dry mass (g)
118
Apparent submerged saturated mass (g)
65
Water density (g/cm³)
0.9982
Connected porosity (%)
33.962264
Dry bulk density (g/cm³)
1.883396
Bulk volume (cm³)
53.095572
Calculation method

Calculation method

Connected porosity (%)

100(saturated−dry)/(saturated−submerged).

Dry bulk density (g/cm³)

dry×water density/(saturated−submerged).

Bulk volume (cm³)

(saturated−submerged)/water density.

Symbols and units
a
Dry mass (g)
b
Saturated-surface-dry mass (g)
c
Apparent submerged saturated mass (g)
d
Water density (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

  • Dry-saturated-submerged masses. Returns Test-derived porosity and density. All coefficients and observations are user supplied; results describe only the stated mathematical model. Quantities are deterministic calculations from supplied observations and assumptions; no external data is fetched. Supported limits: Finite inputs only; numeric fields bounded as labelled. Lists and JSON records are limited to 256 entries unless a stricter tool bound is stated. No automatic design approval, legal conclusion, treatment recommendation or safety certification. Dry mass (g): minimum 1e-12, maximum 1000000000000.0. Saturated-surface-dry mass (g): minimum 1e-12, maximum 1000000000000.0. Apparent submerged saturated mass (g): minimum 1e-12, maximum 1000000000000.0. Water density (g/cm³): minimum 1e-12, maximum 1000000000000.0.
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