257.5 darcy = 257,500 mD
| darcy | mD |
|---|---|
| 242.5 darcy | 242,500 |
| 247.5 darcy | 247,500 |
| 252.5 darcy | 252,500 |
| 257.5 | 257,500 |
| 262.5 darcy | 262,500 |
| 267.5 darcy | 267,500 |
| 272.5 darcy | 272,500 |
257.5 darcy = 257,500 mD
1 darcy = 1,000 millidarcy (mD) · 1 mD = 1,000 microdarcy (μD) · 1 darcy ≈ 9.869×10⁻¹³ m²