Geotechnical parameter correlation tool
Select a target parameter, choose a correlation method, then enter the required inputs. Values are shared and remembered across all methods.
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△ Disclaimer note
This tool is intended as a guide only and should not be used in design. Correlations and parameters used in design should always be consulted with a qualified geotechnical engineer. See full disclaimer at the bottom of the page.
Unit system:
kPa · MPa · kN/m³ · m
Parameter store
Enter values in column C — they'll appear here
No values stored yet.
Column A
Target parameter
Choose the parameter you want to derive.
Column B
Correlation method
Select a target parameter first.
Column C
Required inputs
Select a method to see required inputs.
Column D
Result & method
Complete columns A–C to see the result.
Guidance & Disclaimer
This tool provides indicative geotechnical parameter estimates based on published empirical correlations. It is intended for educational purposes and early-stage guidance only.
Empirical correlations carry inherent uncertainty. Their applicability varies with soil type, geology, stress history, and test conditions. Results must not be used directly in geotechnical design without independent verification by a suitably qualified geotechnical engineer, in accordance with BS EN 1997 and applicable codes of practice, or other locally applicable codes and standards.
GEOCompass and its contributors accept no liability for any loss or claim arising from reliance on outputs from this tool. Use is entirely at the user's own risk.