Use this geological calculation for a transparent first-pass interpretation of measured rock, soil, fluid, well, stratigraphic, isotopic, geophysical, or seismic data under an explicitly selected model.

Solid density

Density of the solid particles in kg/m3.

Water density

Reference water density in kg/m3 (default 1000 at 4 C).

Compute the specific gravity of soil or rock solids as the ratio of particle density to water density. The tool evaluates the supplied inputs together and returns the named outputs below; it does not infer omitted operating conditions or change the units shown.^[1]

Specific gravity

Specific gravity (dimensionless).

• Geological models are scale-, site-, method-, and calibration-dependent. Heterogeneity, anisotropy, sampling, diagenesis, pressure-temperature history, instrument response, boundary conditions, and empirical-correlation range can dominate the result.
• Use finite inputs in the displayed units and preserve more precision than the final presentation requires. Independently verify safety-critical, financial, compliance, or production decisions.

Compare independent measurements and models, retain units and analytical metadata, propagate uncertainty, and validate interpretations against logs, cores, maps, laboratory data, or field observations.

• Cement Slurry Density Calculator

  Compute neat cement slurry density and yield per tonne of dry cement from the water/cement mass ratio and cement specific gravity.

• Buoyant Density Calculator

  Compute the buoyant (submerged) density of a saturated soil or rock as saturated density minus water density.

• Saturated Density Calculator

  Compute the saturated bulk density from specific gravity and void ratio using rho_sat = (Gs + e) / (1 + e) * rho_w.