Calculate the ease with which a fluid (usually water) can move through pore spaces or fractures in soil or rock.
Darcy Parameters
m³/s
m
m²
m
Conductivity Results
Enter measurements to calculate conductivity
About this calculator
Quick Reference
QVolumetric Flow Rate
LLength of Medium
ACross-Sectional Area
ΔhHydraulic Head Difference
KHydraulic Conductivity
Overview
Hydraulic conductivity (K) is a property of a porous medium that describes its ability to transmit fluid. It depends on both the material (porosity, grain size) and the fluid (viscosity, density).
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Pro Tips
Calculated using Darcy's Law: Q = K · A · (Δh / L).
Hydraulic conductivity range varies from 10⁻¹ m/s (gravel) to 10⁻¹² m/s (clay).
Ensure all physical dimensions (L, A, Δh) use consistent length units (e.g., meters).
Flow rate (Q) is volume per unit time (e.g., m³/s).
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Fun Facts
"In environmental engineering, K is critical for predicting the spread of groundwater contamination."
"The value of K can change if the soil becomes compacted or if the fluid temperature (and thus viscosity) changes."
"Henry Darcy, who formulated the law, was a French engineer who designed the water supply for Dijon."
