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Darcy To Millidarcys Converter

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






1000 mD

Conversion Table

Darcy (D)Millidarcys (mD)

Reverse Conversion

millidarcys to darcy

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 D
Calculation
1 * 1000 = 1000
Result
1000 mD

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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