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Permeability

cm²toµD

Convert square centimetres (permeability) (cm²) to microdarcy (µD).

Factor1 cm² = 1.01325e+14 µD

Converter

cm²

Accepts numbers or expressions, e.g. 150 + 14.7

Result
1.01325e+14µD

Rendered to 6 significant figures.

Formula

Formula
µD = cm² × 1.01325e+14

Multiply any value in square centimetres (permeability) by 1.01325e+14 to obtain the value in microdarcy.

Worked example

Convert 1 cm² to µD.

  1. 01Start with 1 cm².
  2. 02Multiply by the conversion factor: 1 × 1.01325e+14 = 1.01325e+14 µD.
Result1 cm² = 1.01325e+14 µD

Conversion table

cm²µD
11.0132e+14
22.0265e+14
55.0662e+14
101.0132e+15
202.0265e+15
505.0662e+15
1001.0132e+16
2002.0265e+16
5005.0662e+16
10001.0132e+17

Reference values rounded to 5 significant figures for display.

FAQ

What is the conversion factor from cm² to µD?
1 cm² equals 1.01325e+14 µD. To convert, multiply the value in square centimetres (permeability) by 1.01325e+14.
How do I convert 1 cm² to µD?
1 cm² = 1.01325e+14 µD. For any value, multiply by 1.01325e+14.
How do I convert µD back to cm²?
Divide by the same factor — or equivalently, multiply by 9.869233e-15. So 1 µD = 9.86923e-15 cm².
When would I need to convert square centimetre (permeability) to microdarcy?
Permeability conversions between cm² and µD appear in petroleum and reservoir engineering, hydrogeology, geotechnical engineering, packed-bed filtration and porous-materials research. The darcy (D) and its sub-multiples (mD, µD, nD) dominate petroleum-engineering documentation; SI area-equivalent units (m², µm², mm², cm², ft²) appear in geophysics and porous-media research. Intrinsic permeability is a property of the porous medium alone — this category does NOT include hydraulic conductivity (m/s, requires fluid density and viscosity), gas permeability (Klinkenberg slip corrections) or membrane-permeability coefficients, all of which are different physical quantities and require explicit assumptions.
Is the conversion exact?
The factor shown is precise to at least 7 significant figures. For most process-engineering work this is far better than instrument accuracy. For metrology or trade applications, refer to the relevant national standard (NIST, BIPM, ISO 80000).

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