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Permeability

µm²tocm²

Convert square micrometres (permeability) (µm²) to square centimetres (permeability) (cm²).

Factor1 µm² = 1e-8 cm²

Converter

µm²

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

Result
1e-8cm²

Rendered to 6 significant figures.

Formula

Formula
cm² = µm² × 1e-8

Multiply any value in square micrometres (permeability) by 1e-8 to obtain the value in square centimetres (permeability).

Worked example

Convert 1 µm² to cm².

  1. 01Start with 1 µm².
  2. 02Multiply by the conversion factor: 1 × 1e-8 = 1e-8 cm².
Result1 µm² = 1e-8 cm²

Conversion table

µm²cm²
11e-8
22e-8
55e-8
101e-7
202e-7
505e-7
1001e-6
2002e-6
5005e-6
10001e-5

Reference values rounded to 5 significant figures for display.

FAQ

What is the conversion factor from µm² to cm²?
1 µm² equals 1e-8 cm². To convert, multiply the value in square micrometres (permeability) by 1e-8.
How do I convert 1 µm² to cm²?
1 µm² = 1e-8 cm². For any value, multiply by 1e-8.
How do I convert cm² back to µm²?
Divide by the same factor — or equivalently, multiply by 1e+8. So 1 cm² = 1e+8 µm².
When would I need to convert square micrometre (permeability) to square centimetre (permeability)?
Permeability conversions between µm² 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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