668.5 darcy = 668,500 mD
| darcy | mD |
|---|---|
| 653.5 darcy | 653,500 |
| 658.5 darcy | 658,500 |
| 663.5 darcy | 663,500 |
| 668.5 | 668,500 |
| 673.5 darcy | 673,500 |
| 678.5 darcy | 678,500 |
| 683.5 darcy | 683,500 |
668.5 darcy = 668,500 mD
1 darcy = 1,000 millidarcy (mD) · 1 mD = 1,000 microdarcy (μD) · 1 darcy ≈ 9.869×10⁻¹³ m²