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Porous medium permeability converter

Convert intrinsic permeability of porous materials between m², µm², darcy and millidarcy.

Free & no registration Calculated in your browser
01

Your inputs

The starting values are an example.

Decimals: 12.5 · Thousands: 1,234.56. Follow the field instructions for lists.

02

Your result

Enter your values and select Calculate.

Your calculation will appear here.

Your result will include the relevant values and units.

Understand the calculation

Formula and example

How it is calculated

Converted value = original value × source factor / target factor

Worked example

1 darcy (D) = 0.9869233 µm².

Things to check

  • This is intrinsic permeability in m² or darcy. Magnetic permeability is a different quantity. The darcy factor follows the NIST table rounded to seven significant figures.
  • Rounding is applied only to displayed results. Very small or very large values may appear in scientific notation.

Sources and references