Soil sand-cone density reduction calculator

Calculate hole volume and wet field density with your own figures.

Your numbers

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

Use hole volume and wet field density to compare changes to your inputs. The method and limits below explain the scope.

Examples

Examples

Try the starting example

Sand placed in hole after cone correction (g)
1500
Calibrated sand density (g/cm³)
1.5
Excavated wet soil mass (g)
1800
Soil water content (%)
15
Hole volume (cm³)
1000
Wet field density (g/cm³)
1.8
Dry field density (g/cm³)
1.565217

Try another scenario

Sand placed in hole after cone correction (g)
1501
Calibrated sand density (g/cm³)
1.5
Excavated wet soil mass (g)
1800
Soil water content (%)
15
Hole volume (cm³)
1,000.666667
Wet field density (g/cm³)
1.798801
Dry field density (g/cm³)
1.564175
Calculation method

Calculation method

Hole volume (cm³)

Hole volume=corrected sand mass/sand density; field soil mass/volume; dry density adjusts water content.

Wet field density (g/cm³)

Hole volume=corrected sand mass/sand density; field soil mass/volume; dry density adjusts water content.

Dry field density (g/cm³)

Hole volume=corrected sand mass/sand density; field soil mass/volume; dry density adjusts water content.

Symbols and units
a
Sand placed in hole after cone correction (g)
b
Calibrated sand density (g/cm³)
c
Excavated wet soil mass (g)
d
Soil water content (%)

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; Hole volume=corrected sand mass/sand density; field soil mass/volume; dry density adjusts water content. 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.
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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.

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