Permeability Converter
Permeability Converter Conversion Chart
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About This Tool
This Permeability Converter is a highly specialized tool used in material science, geoscience, and chemical engineering. It converts units of permeability, which measures the ability of a porous material (like rock or a membrane) to allow fluids or gases to pass through it. The base unit is kilogram per pascal-second-square meter.
This property is critical in petroleum engineering for assessing oil reservoirs, in civil engineering for analyzing soil drainage, and in material science for developing filtration membranes and protective coatings. This tool focuses on the general SI-based definition of permeability.
Tips & Features
- Darcy's Law: Permeability is a key component of Darcy's Law, which describes the flow of a fluid through a porous medium.
- Perm vs. Permeability: In the context of building materials, 'permeance' (often measured in 'perms') is a related property that describes the water vapor transmission rate for a specific thickness of material. Permeability is an intrinsic bulk property of the material itself.
- Temperature Dependence: As shown by the specific 'perm' units, the permeability of a material to a gas can be dependent on temperature, which affects gas viscosity and molecular motion.
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Updated 11/3/2025