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Permeability

kDtocm²

Convert kilodarcy (kD) to square centimetres (permeability) (cm²).

Factor1 kD = 9.869233e-6 cm²

Converter

kD

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

Result
9.86923e-6cm²

Rendered to 6 significant figures.

Formula

Formula
cm² = kD × 9.869233e-6

Multiply any value in kilodarcy by 9.869233e-6 to obtain the value in square centimetres (permeability).

Worked example

Convert 1 kD to cm².

  1. 01Start with 1 kD.
  2. 02Multiply by the conversion factor: 1 × 9.869233e-6 = 9.86923e-6 cm².
Result1 kD = 9.86923e-6 cm²

Conversion table

kDcm²
19.8692e-6
21.9738e-5
54.9346e-5
109.8692e-5
200.00019738
500.00049346
1000.00098692
2000.0019738
5000.0049346
10000.0098692

Reference values rounded to 5 significant figures for display.

FAQ

What is the conversion factor from kD to cm²?
1 kD equals 9.869233e-6 cm². To convert, multiply the value in kilodarcy by 9.869233e-6.
How do I convert 1 kD to cm²?
1 kD = 9.86923e-6 cm². For any value, multiply by 9.869233e-6.
How do I convert cm² back to kD?
Divide by the same factor — or equivalently, multiply by 101325. So 1 cm² = 101325 kD.
When would I need to convert kilodarcy to square centimetre (permeability)?
Permeability conversions between kD and cm² 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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