Convert Millimetre squared to Micrometre squared
Convert Millimetre squared (mm²) to Micrometre squared (µm²) instantly and accurately.
Conversion Formula
µm² = mm² × 1000000
About Millimetre squared
The millimetre squared (mm²) equals 10⁻⁶ m² ≈ 1.013 × 10⁹ D, representing extremely high permeabilities beyond the range of most geological materials. It appears in geotechnical research for open rock fractures, coarse gravel channel beds, and large-cell open-foam engineered materials. 1 mm² = 10⁶ µm² = 10⁻⁶ m².
About Micrometre squared
The micrometre squared (µm²) equals 10⁻¹² m², the SI-consistent permeability unit used in European reservoir standards and ISO documents. 1 µm² ≈ 1.0133 D - numerically close to but distinct from the darcy. Clean gravel: 1-10 µm²; clean sandstone: 10⁻³-0.1 µm². 1 µm² = 10⁶ nm² = 10⁻⁶ mm².
Quick Reference Table
| Millimetre squared (mm²) | Micrometre squared (µm²) |
|---|---|
| 1 mm² | 1000000 µm² |
| 2 mm² | 2000000 µm² |
| 5 mm² | 5000000 µm² |
| 10 mm² | 10000000 µm² |
| 25 mm² | 25000000 µm² |
| 50 mm² | 50000000 µm² |
| 100 mm² | 100000000 µm² |