Millidarcys To Picodarcys Converter
Reverse Conversion
How This Converter Works
Convert between Millidarcys (mD) and Picodarcys (pD). Select either direction to convert directly.
Formula or rule
Picodarcys = Millidarcys * 1000000000; Millidarcys = Picodarcys / 1000000000
Example
- Input
- 1 mD
- Calculation
- 1 * 1000000000 = 1000000000
- Result
- 1000000000 pD
Notes
Intrinsic porous-media permeability is an area quantity. The Darcy flow definition uses 1 cm³/s, 1 cP, 1 cm length, 1 cm² area, and 1 atm pressure difference; k = qμL/(AΔp) gives 1 D = 9.869232667… × 10⁻¹³ m² (usually rounded to 9.869233 × 10⁻¹³ m²). Darcy prefixes use exact SI powers of ten. Hydraulic conductivity is not interchangeable because it also depends on fluid properties.