Unit converter

Permeability converter

Convert porous-media permeability units including square meters, darcy, and centidarcy.

Enter a value and choose units. Results update instantly.

1 m² = 1e12 µm²

All Permeability units

From 1 m²
UnitValue
Permeability (0°C) 0°C 1
Permeability (20°C) 20°C 0.9225092251
Permeability (23°C) 23°C 0.9115770283
Darcy d 1,028,806,584.3621399403
Centidarcy cd 102,880,658,436.2139892578
Square meter m² 1
Square micrometer µm² 1e12
Recent conversions
  1. Your recent conversions stay on this device.

Common tasks

Square meter to Square micrometerm² to µm² Square micrometer to Square meterµm² to m² Square meter to Darcym² to d Darcy to Square meterd to m² Square meter to Centidarcym² to cd Centidarcy to Square metercd to m²

Reference

How permeability conversion works

Permeability describes how readily a porous material permits fluid flow. Values are normalized to Square meter before conversion to the requested output unit.

Values are converted to square meter first, then from that reference into the requested unit. Keeping a single documented reference reduces inconsistent pair-by-pair constants.

Accuracy note: SI relationships follow the cited reference. Conventional and domain-specific factors use the established ConvertWin factor inventory; verify safety-critical work against the governing standard.

Unit reference

UnitSymbol1 unit in m²
Permeability (0°C)0°C1
Permeability (20°C)20°C1.084
Permeability (23°C)23°C1.097
Darcyd0.000000000972
Centidarcycd0.00000000001
Square meterm²1
Square micrometerµm²0.000000000001

Long-tail directory

Every indexed conversion

Choose a source unit to see all available destinations.

From Square meter (m²)
Square meter to Square micrometerSquare meter to DarcySquare meter to Centidarcy
From Square micrometer (µm²)
Square micrometer to Square meterSquare micrometer to DarcySquare micrometer to Centidarcy
From Darcy (d)
Darcy to Square meterDarcy to Square micrometerDarcy to Centidarcy
From Centidarcy (cd)
Centidarcy to Square meterCentidarcy to Square micrometerCentidarcy to Darcy

Primary source

Definitions and standards

The SI framework is checked against NIST Guide for the Use of the International System of Units. Conventional factors are retained from the extended ConvertWin inventory and carry the accuracy note shown above.

See Methods & sources for rounding rules, exact-value handling, and review policy.

Questions

Permeability FAQ

What is the reference unit for permeability conversions?

ConvertWin uses square meter (m²) as the internal reference for this category, then converts to the selected output unit.

How accurate is this permeability converter?

SI relationships follow the cited reference. Conventional and domain-specific factors use the established ConvertWin factor inventory; verify safety-critical work against the governing standard.