Convert Darcy to Kilodarcy
Convert Darcy (D) to Kilodarcy (kD) instantly and accurately.
Conversion Formula
kD = D × 0.001
About Darcy
The darcy (D) ≈ 9.869 × 10⁻¹³ m², the oilfield-standard permeability unit defined by Darcy's law: 1 D passes 1 cm³/s of 1 cP fluid through 1 cm² cross-section under a 1 atm/cm gradient. Highly permeable consolidated sandstone: 1-5 D; unconsolidated sand: 5-20 D. 1 D = 1 000 mD ≈ 0.9869 µm².
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.
Quick Reference Table
| Darcy (D) | Kilodarcy (kD) |
|---|---|
| 1 D | 0.001 kD |
| 2 D | 0.002 kD |
| 5 D | 0.005 kD |
| 10 D | 0.01 kD |
| 25 D | 0.025 kD |
| 50 D | 0.05 kD |
| 100 D | 0.1 kD |