Convert Kilodarcy to Millimetre squared
Convert Kilodarcy (kD) to Millimetre squared (mm²) instantly and accurately.
Conversion Formula
mm² = kD × 0.0009869232667
About Kilodarcy
The kilodarcy (kD) equals 10³ D ≈ 9.869 × 10⁻¹⁰ m², used for very high-permeability porous structures. Gravel packs in oil wells: 1-100 kD; vuggy dissolved carbonates: 1-10 kD; loose sand-gravel mixtures: 10-1 000 kD. 1 kD = 10³ D = 10⁶ mD.
About Millimetre squared
The millimetre squared (mm²) equals 10⁻⁶ m² ≈ 1.013 × 10⁹ D, representing extremely high permeabilities beyond the range of most geological materials. It appears in geotechnical research for open rock fractures, coarse gravel channel beds, and large-cell open-foam engineered materials. 1 mm² = 10⁶ µm² = 10⁻⁶ m².
Quick Reference Table
| Kilodarcy (kD) | Millimetre squared (mm²) |
|---|---|
| 1 kD | 0.000986923 mm² |
| 2 kD | 0.00197385 mm² |
| 5 kD | 0.00493462 mm² |
| 10 kD | 0.00986923 mm² |
| 25 kD | 0.0246731 mm² |
| 50 kD | 0.0493462 mm² |
| 100 kD | 0.0986923 mm² |