Convert Millimetre squared to Picometre squared
Convert Millimetre squared (mm²) to Picometre squared (pm²) instantly and accurately.
Conversion Formula
pm² = mm² × 1.000000000e+18
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 Picometre squared
The picometre squared (pm²) equals 10⁻²⁴ m², used in molecular simulation and crystallography for the intrinsic permeability of dense crystalline solids. Halite and anhydrite crystal lattices have calculated matrix permeabilities below 1 pm²; theoretical studies of gas diffusion through graphene oxide membranes work at this scale. 1 pm² = 10⁻⁶ nm² = 10⁻²⁴ m².
Quick Reference Table
| Millimetre squared (mm²) | Picometre squared (pm²) |
|---|---|
| 1 mm² | 1 × 1018 pm² |
| 2 mm² | 2 × 1018 pm² |
| 5 mm² | 5 × 1018 pm² |
| 10 mm² | 1 × 1019 pm² |
| 25 mm² | 2.5 × 1019 pm² |
| 50 mm² | 5 × 1019 pm² |
| 100 mm² | 1 × 1020 pm² |