Square Micrometres to Square Centimetres (um2 to cm2)
1 square micrometre (µm²) = 1 × 10⁻⁸ square centimetres (cm²). 1 cm² = 100000000 µm². Example: 15 µm² = 15 × 1 × 10⁻⁸ = 1.5 × 10⁻⁷ cm².
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1 µm² = 1e-8 cm²
Type in either box. Scientific notation works: 1.5e-3.
Converting a list? Use the bulk square micrometre to square centimetre converter to paste a column from Excel.
How to Convert Square Micrometre to Square Centimetre
- 1 µm² = 1 × 10⁻⁸ cm²
- 1 cm² = 100000000 µm²
- Example: convert 15 µm² to cm²: 15 µm² = 15 × 1 × 10⁻⁸ cm² = 1.5 × 10⁻⁷ cm²
Formula
cm² = µm² ÷ 100000000
Derivation from SI units:
- 1 µm² = 10⁻¹² m², almost exactly one darcy (1 D = 0.9869 µm²).
- 1 cm² = 10⁻⁴ m².
- 1 µm² = 1 × 10⁻¹² m² ÷ 0.0001 m² per cm² = 1 × 10⁻⁸ cm²
Both units are defined exactly, so the factor is exact. Square Micrometre definition: square micrometre; Square Centimetre definition: square centimetre.
Worked examples
- A reading of 0.1 µm² converts to 1 × 10⁻⁹ cm².
0.1 µm² × 1 × 10⁻⁸ = 1 × 10⁻⁹ cm² - A value of 2 µm² is 2 × 10⁻⁸ cm².
2 µm² × 1 × 10⁻⁸ = 2 × 10⁻⁸ cm²
Square Micrometre to Square Centimetre conversion table
| Square Micrometres (µm²) | Square Centimetres (cm²) |
|---|---|
| 0.001 µm² | 1 × 10⁻¹¹ cm² |
| 0.01 µm² | 1 × 10⁻¹⁰ cm² |
| 0.05 µm² | 5 × 10⁻¹⁰ cm² |
| 0.1 µm² | 1 × 10⁻⁹ cm² |
| 0.5 µm² | 5 × 10⁻⁹ cm² |
| 1 µm² | 1 × 10⁻⁸ cm² |
| 2 µm² | 2 × 10⁻⁸ cm² |
| 5 µm² | 5 × 10⁻⁸ cm² |
| 10 µm² | 1 × 10⁻⁷ cm² |
| 100 µm² | 0.000001 cm² |
Where it's used
Square Micrometres are used for petroleum reservoir data in SI, while square centimetres appear in soil physics and older literature. Both measure intrinsic permeability of a porous medium, so the conversion is a fixed factor.
Square Micrometre to other intrinsic permeability units
| Conversion | 1 µm² equals |
|---|---|
| square micrometre to square centimetre | 1 × 10⁻⁸ cm² |
| square micrometre to square metre | 1 × 10⁻¹² m² |
| square micrometre to darcy | 1.013249966 D |
| square micrometre to millidarcy | 1013.249966 mD |
Frequently asked questions
How many square centimetres are in 1 square micrometre?
1 µm² = 1 × 10⁻⁸ cm².
How do I convert square micrometres to square centimetres?
Multiply the value in µm² by 1 × 10⁻⁸, or divide it by 100000000. For example, 15 µm² × 1 × 10⁻⁸ = 1.5 × 10⁻⁷ cm².
Is the µm² to cm² conversion exact?
Yes. Both units are defined exactly, and 1 µm² is exactly 1 × 10⁻⁸ cm².
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 Micrometres to Square Centimetres (um2 to cm2). Retrieved October 29, 2026, from https://scientificconverters.com/intrinsic-permeability/square-micrometers-to-square-centimeters/
IEEE
Scientific Converters, "Square Micrometres to Square Centimetres (um2 to cm2)," scientificconverters.com. Accessed: Oct. 29, 2026. [Online]. Available: https://scientificconverters.com/intrinsic-permeability/square-micrometers-to-square-centimeters/