How to convert darcies to millidarcies
mD = D × 1,000Multiply the value in darcies by 1,000. To go the other way, multiply by 0.001 (or divide by 1,000).
A darcy is larger than a millidarcy: one darcy contains 1,000 millidarcies.
Worked examples
- 1 darcy1 D × 1,000 = 1,000 mD
- 5 darcies5 D × 1,000 = 5,000 mD
- 10 darcies10 D × 1,000 = 10,000 mD
- 20 darcies20 D × 1,000 = 20,000 mD
- 100 darcies100 D × 1,000 = 100,000 mD
Darcies to millidarcies conversion table
Values are calculated by the conversion engine and rounded to 8 significant figures.
| Darcies (D) | Millidarcies (mD) |
|---|---|
| 0.1 D | 100 mD |
| 0.25 D | 250 mD |
| 0.5 D | 500 mD |
| 1 D | 1,000 mD |
| 2 D | 2,000 mD |
| 3 D | 3,000 mD |
| 4 D | 4,000 mD |
| 5 D | 5,000 mD |
| 6 D | 6,000 mD |
| 7 D | 7,000 mD |
| 8 D | 8,000 mD |
| 9 D | 9,000 mD |
| 10 D | 10,000 mD |
| Darcies (D) | Millidarcies (mD) |
|---|---|
| 12 D | 12,000 mD |
| 15 D | 15,000 mD |
| 20 D | 20,000 mD |
| 25 D | 25,000 mD |
| 30 D | 30,000 mD |
| 40 D | 40,000 mD |
| 50 D | 50,000 mD |
| 75 D | 75,000 mD |
| 100 D | 100,000 mD |
| 250 D | 250,000 mD |
| 500 D | 500,000 mD |
| 1,000 D | 1,000,000 mD |
About the units
Darcy (D)
Defined so that 1 cm³/s of a 1 cP fluid flows through 1 cm² under 1 atm/cm; ≈ 9.869233 × 10⁻¹³ m². One darcy equals 9.869233×10⁻¹³ square meters (m²).
Millidarcy (mD)
The millidarcy (mD) is a unit of permeability (porous media). One millidarcy equals 9.869233×10⁻¹⁶ square meters (m²).
Frequently asked questions
How many millidarcies are in one darcy?
There are 1,000 millidarcies in one darcy.
How do I convert darcies to millidarcies?
Multiply the number of darcies by 1,000. For example, 10 D × 1,000 = 10,000 mD.
How many darcies are in one millidarcy?
One millidarcy equals 0.001 darcies. That is the reverse factor, 1 ÷ 1,000.
What is 10 darcies in millidarcies?
10 D = 10,000 mD.
Is this D to mD converter accurate?
The conversion uses the accepted reference value. Results are shown to 12 significant figures by default; adjust precision in the converter.