680.5 darcy = 680,500 mD
| darcy | mD |
|---|---|
| 665.5 darcy | 665,500 |
| 670.5 darcy | 670,500 |
| 675.5 darcy | 675,500 |
| 680.5 | 680,500 |
| 685.5 darcy | 685,500 |
| 690.5 darcy | 690,500 |
| 695.5 darcy | 695,500 |
680.5 darcy = 680,500 mD
1 darcy = 1,000 millidarcy (mD) · 1 mD = 1,000 microdarcy (μD) · 1 darcy ≈ 9.869×10⁻¹³ m²