Convert Millidarcy to Square Meter (Permeability)
Live bidirectional calculator for Millidarcies (mD) and Square Meters (Permeability) (m²) with verified formula and conversion charts.
Permeability6 units
How the Calculation Works (Linear Scaling)
Since 1 Square Meter (Permeability) = 1.01325e+15 Millidarcies, divide the value in Millidarcies by 1.01325e+15.
Millidarcy to Square Meter (Permeability) Conversion Table
Precomputed values for quick reference and printing.
| Millidarcy | Square Meter (Permeability) |
|---|---|
| 1 mD | 9.8692e-16 m² |
| 2 mD | 1.9738e-15 m² |
| 3 mD | 2.9608e-15 m² |
| 4 mD | 3.9477e-15 m² |
| 5 mD | 4.9346e-15 m² |
| 6 mD | 5.9215e-15 m² |
| 7 mD | 6.9085e-15 m² |
| 8 mD | 7.8954e-15 m² |
| 9 mD | 8.8823e-15 m² |
| 10 mD | 9.8692e-15 m² |
| 15 mD | 1.4804e-14 m² |
| 20 mD | 1.9738e-14 m² |
| 25 mD | 2.4673e-14 m² |
| 30 mD | 2.9608e-14 m² |
| 40 mD | 3.9477e-14 m² |
| 50 mD | 4.9346e-14 m² |
| 75 mD | 7.4019e-14 m² |
| 100 mD | 9.8692e-14 m² |
| Square Meter (Permeability) | Millidarcy |
|---|---|
| 1 m² | 1.0132e+15 mD |
| 2 m² | 2.0265e+15 mD |
| 3 m² | 3.0397e+15 mD |
| 4 m² | 4.053e+15 mD |
| 5 m² | 5.0662e+15 mD |
| 6 m² | 6.0795e+15 mD |
| 7 m² | 7.0927e+15 mD |
| 8 m² | 8.106e+15 mD |
| 9 m² | 9.1192e+15 mD |
| 10 m² | 1.0132e+16 mD |
| 15 m² | 1.5199e+16 mD |
| 20 m² | 2.0265e+16 mD |
| 25 m² | 2.5331e+16 mD |
| 30 m² | 3.0397e+16 mD |
| 40 m² | 4.053e+16 mD |
| 50 m² | 5.0662e+16 mD |
| 75 m² | 7.5994e+16 mD |
| 100 m² | 1.0132e+17 mD |
About Millidarcy (mD)
One thousandth of a darcy, equal to approximately 9.869233 × 10⁻¹⁶ m² (~0.9869233 μm²).
History: The most commonly encountered unit in routine petroleum core analysis and tight-gas reservoir engineering.
Common Uses: Hydrocarbon core plug permeability measurements (typical reservoir rocks range from 0.1 mD to several hundred mD).
About Square Meter (Permeability) (m²)
The SI coherent derived unit of intrinsic permeability of a porous medium, having dimensions of area (L²). It quantifies the ease with which a fluid flows through porous rock or soil under a pressure gradient independently of fluid viscosity (k in Darcy’s law: q = -(k/μ) ∇P).
History: Derived directly from dimensional analysis of Darcy’s law (1856) formulated by French engineer Henry Darcy during his Dijon public fountain sand filtration experiments.
Common Uses: Geotechnical groundwater seepage analysis, subsurface porous media reservoir simulation, ceramic membrane filter media design.
❓ Frequently Asked Questions
How many Square Meters (Permeability) are in 1 Millidarcy?
There are exactly 9.869233e-16 Square Meters (Permeability) in 1 Millidarcy (1 mD = 9.869233e-16 m²).
What is the formula to convert Millidarcy to Square Meter (Permeability)?
The formula is: Square Meter (Permeability) = Millidarcy / 1.01325e+15. Since 1 Square Meter (Permeability) = 1.01325e+15 Millidarcies, divide the value in Millidarcies by 1.01325e+15.
How do I convert 1 mD to m² manually?
To convert 1 mD to m²: apply the formula Square Meter (Permeability) = Millidarcy / 1.01325e+15. Substituting gives: 1 / 1.01325e+15 = 9.8692e-16 m².