Square Centimetre (cm²)
Square centimetres are the CGS unit of intrinsic permeability used in older soil-physics texts; 1 darcy ≈ 9.87 × 10⁻⁹ cm².
Symbol: cm² (ASCII: cm2)
Quantity: intrinsic permeability of a porous medium
SI relation: 1 cm² = 0.0001 m² (exact)
Derivation: 1 cm² = 10⁻⁴ m².
Exact: yes, by definition
Typical uses
- Soil physics and older literature
Convert square centimetres to other units
| Conversion | 1 cm² equals | Reverse |
|---|---|---|
| square centimetre to square metre | 0.0001 m² | square metre to square centimetre |
| square centimetre to darcy | 101324996.6 D | darcy to square centimetre |
| square centimetre to millidarcy | 101324996600 mD | millidarcy to square centimetre |
| square centimetre to square micrometre | 100000000 µm² | square micrometre to square centimetre |
Open the Permeability Converter (Darcy, Millidarcy, m²) to convert any value between all units.
Sources
- The International System of Units (SI), 9th edition (SI Brochure), Bureau International des Poids et Mesures , Table 4 (derived units) and Table 8 (non-SI units accepted for use with the SI).
Last reviewed: . Factors are stored exactly and computed with 50-digit decimal arithmetic. See how we verify conversion factors.
Cite this page
APA
Scientific Converters. (2026, October 15). Square Centimetre (cm²). Retrieved October 29, 2026, from https://scientificconverters.com/units/square-centimeter-permeability/
IEEE
Scientific Converters, "Square Centimetre (cm²)," scientificconverters.com. Accessed: Oct. 29, 2026. [Online]. Available: https://scientificconverters.com/units/square-centimeter-permeability/