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Millidarcys To Darcy Converter

Convert between Darcy (D) and Millidarcys (mD). Choose a direction to convert.






0.001 D

Conversion Table

Millidarcys (mD)Darcy (D)

Reverse Conversion

darcy to millidarcys

How This Converter Works

Convert between Darcy (D) and Millidarcys (mD). Select either direction to convert directly.

Formula or rule

Millidarcys = Darcy * 1000; Darcy = Millidarcys / 1000

Example

Input
1 mD
Calculation
1 * 0.001 = 0.001
Result
0.001 D

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.

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