Convert Darcies to Square Metres (D to m2)
1 darcy (D) = 9.869233 × 10⁻¹³ square metres (m²). 1 m² = 1013249966000 D. Example: 1 D = 1 × 9.869233 × 10⁻¹³ = 9.869233 × 10⁻¹³ m².
Also searched as darcy to m2, darcy to square meter, D to m² and permeability darcy conversion.
1 D = 9.869233e-13 m²
Type in either box. Scientific notation works: 1.5e-3.
Converting a list? Use the bulk darcy to square metre converter to paste a column from Excel.
How to Convert Darcy to Square Metre
- 1 D = 9.869233 × 10⁻¹³ m²
- 1 m² = 1013249966000 D
- Example: convert 1 D to m²: 1 D = 1 × 9.869233 × 10⁻¹³ m² = 9.869233 × 10⁻¹³ m²
Formula
m² = D × 9.869233 × 10⁻¹³
or m² = D ÷ 1013249965828
Derivation from SI units:
- 1 D passes 1 cm³/s of a 1 cP fluid through 1 cm² under 1 atm/cm: 9.869233 × 10⁻¹³ m².
- Intrinsic permeability k has dimension of area: k = K μ / (ρ g).
One unit is a measured value, so the factor is approximate. Darcy definition: darcy; Square Metre definition: square metre.
Worked examples
- 1 D is 9.869233 × 10⁻¹³ m².
1 D × 9.869233 × 10⁻¹³ = 9.869233 × 10⁻¹³ m² - A sandstone of 0.5 D is 4.9346165 × 10⁻¹³ m².
0.5 D × 9.869233 × 10⁻¹³ = 4.9346165 × 10⁻¹³ m²
Darcy to Square Metre conversion table
| Darcies (D) | Square Metres (m²) |
|---|---|
| 0.001 D | 9.869233 × 10⁻¹⁶ m² |
| 0.01 D | 9.869233 × 10⁻¹⁵ m² |
| 0.05 D | 4.9346165 × 10⁻¹⁴ m² |
| 0.1 D | 9.869233 × 10⁻¹⁴ m² |
| 0.5 D | 4.9346165 × 10⁻¹³ m² |
| 1 D | 9.869233 × 10⁻¹³ m² |
| 2 D | 1.9738466 × 10⁻¹² m² |
| 5 D | 4.9346165 × 10⁻¹² m² |
| 10 D | 9.869233 × 10⁻¹² m² |
| 100 D | 9.869233 × 10⁻¹¹ m² |
Where it's used
Permeabilities in darcies from core analysis and reservoir reports are converted to m² for SI porous-media equations and simulators. Multiply by 9.869233 × 10⁻¹³.
Darcy to other intrinsic permeability units
| Conversion | 1 D equals |
|---|---|
| darcy to square metre | 9.869233 × 10⁻¹³ m² |
| darcy to millidarcy | 1000 mD |
| darcy to square micrometre | 0.9869233 µm² |
| darcy to square centimetre | 9.869233 × 10⁻⁹ cm² |
Frequently asked questions
How many m² is one darcy?
1 D = 9.869233 × 10⁻¹³ m², almost exactly one square micrometre (0.987 µm²).
Where does the darcy come from?
One darcy passes 1 cm³/s of a 1 cP fluid through 1 cm² under a gradient of 1 atm per cm, so its value depends on the atmosphere: 9.869233 × 10⁻¹³ m².
How many square metres are in 1 darcy?
1 D = 9.869233 × 10⁻¹³ m².
How do I convert darcies to square metres?
Multiply the value in D by 9.869233 × 10⁻¹³, or divide it by 1013249966000. For example, 1 D × 9.869233 × 10⁻¹³ = 9.869233 × 10⁻¹³ m².
Is the D to m² conversion exact?
Not exactly. The darcy is a measured value (see sources). Results are good to about 5 significant figures.
Sources
- Guide for the Use of the International System of Units (SI), NIST Special Publication 811, 2008 Edition, National Institute of Standards and Technology , Appendix B.8, "darcy".
- The International System of Units (SI), 9th edition (SI Brochure), Bureau International des Poids et Mesures , Table 4 (derived units) and Table 8 (non-SI units accepted for use with the SI).
Last reviewed: . Factors are stored exactly and computed with 50-digit decimal arithmetic. See how we verify conversion factors.
Cite this page
APA
Scientific Converters. (2026, October 15). Convert Darcies to Square Metres (D to m2). Retrieved October 29, 2026, from https://scientificconverters.com/intrinsic-permeability/darcies-to-square-meters/
IEEE
Scientific Converters, "Convert Darcies to Square Metres (D to m2)," scientificconverters.com. Accessed: Oct. 29, 2026. [Online]. Available: https://scientificconverters.com/intrinsic-permeability/darcies-to-square-meters/