Constant Head Permeability Calculator
Calculate hydraulic conductivity from constant-head test volume, specimen length, cross-sectional area, head difference, and elapsed time.
A QUICK WALKTHROUGH
How to use this tool
- Enter the parameters and units listed below.
- Review the formula and scope limits.
- Calculate locally in this browser.
Formula and scope
Darcy constant-head equation: k = VL/(Aht). Uses user-supplied consistent units; no temperature correction. This is an arithmetic aid only; verify inputs and assumptions independently.
Privacy
Inputs are processed locally and are not uploaded or stored.
GOOD TO KNOW
Common questions
Does this select design or operating parameters?
No. It calculates only from values you provide and is not a safety or process recommendation.