Convert Nanodarcy to Inch squared
Convert Nanodarcy (nD) to Inch squared (in²) instantly and accurately.
Conversion Formula
in² = nD × 1.529734123e-18
About Nanodarcy
The nanodarcy (nD) equals 10⁻⁹ D ≈ 9.869 × 10⁻²² m², the standard permeability unit for ultra-tight unconventional reservoirs. Barnett, Marcellus, and Eagle Ford shale matrix: 1-1 000 nD; crystalline basement rocks and caprocks: below 1 nD. Measured by pulse-decay or GRI crushed-rock methods. 1 nD = 10⁻³ µD = 10⁻⁶ mD.
About Inch squared
The square inch (in²) equals (0.0254 m)² = 6.4516 × 10⁻⁴ m² ≈ 6.54 × 10¹¹ D. An imperial area unit included for unit-conversion completeness; it appears in some US oil-country tubular goods and industrial filter-media specifications where flow cross-sections are stated in square inches. 1 in² ≈ 6.452 cm² = 6.4516 × 10⁻⁴ m².
Quick Reference Table
| Nanodarcy (nD) | Inch squared (in²) |
|---|---|
| 1 nD | 1.53 × 10-18 in² |
| 2 nD | 3.059 × 10-18 in² |
| 5 nD | 7.649 × 10-18 in² |
| 10 nD | 1.53 × 10-17 in² |
| 25 nD | 3.824 × 10-17 in² |
| 50 nD | 7.649 × 10-17 in² |
| 100 nD | 1.53 × 10-16 in² |