Convert Millidarcy to Foot squared
Convert Millidarcy (mD) to Foot squared (ft²) instantly and accurately.
Conversion Formula
ft² = mD × 1.062315363e-14
About Millidarcy
The millidarcy (mD) equals 10⁻³ D ≈ 9.869 × 10⁻¹⁶ m², the everyday unit in petroleum reservoir engineering worldwide. Conventional sandstone reservoirs: 1-1 000 mD; carbonate reservoirs: 0.1-100 mD; economic gas recovery typically requires k ≥ 0.1 mD. Permeameter and well-test reports give results in mD. 1 mD = 10⁻³ D = 10³ µD.
About Foot squared
The square foot (ft²) equals (0.3048 m)² = 9.290 304 × 10⁻² m² ≈ 9.41 × 10¹³ D. An imperial area unit included for unit-conversion completeness; it occasionally appears in US geotechnical reports where flow cross-sections are expressed in square feet. 1 ft² = 144 in² = 9.290 304 × 10⁻² m².
Quick Reference Table
| Millidarcy (mD) | Foot squared (ft²) |
|---|---|
| 1 mD | 1.062 × 10-14 ft² |
| 2 mD | 2.125 × 10-14 ft² |
| 5 mD | 5.312 × 10-14 ft² |
| 10 mD | 1.062 × 10-13 ft² |
| 25 mD | 2.656 × 10-13 ft² |
| 50 mD | 5.312 × 10-13 ft² |
| 100 mD | 1.062 × 10-12 ft² |