Permeability Converter
Convert between various units of permeability (e.g., darcy, m², ft²).
From
Please enter a valid number.
To
Quick Examples
Understanding Permeability
Permeability (k) is a measure of the ability of a porous material (often a rock or unconsolidated material) to allow fluids (gas or liquid) to pass through it. It is a property of the porous medium, not the fluid.
The SI unit for permeability is square meters (m²), although the darcy (D) and millidarcy (mD) are commonly used in the petroleum and hydrogeology fields.
| Unit Name | Symbol | Relation to m² (Approx.) |
|---|---|---|
| Square meter | m² | Base unit (1 m²) |
| Darcy | D | 0.986923 × 10-12 m² |
| Millidarcy | mD | 0.986923 × 10-15 m² |
| Square centimeter | cm² | 1 × 10-4 m² |
| Square foot | ft² | 0.092903 m² |
| Square inch | in² | 0.00064516 m² |