Convert Nanodarcy to Foot squared
Convert Nanodarcy (nD) to Foot squared (ft²) instantly and accurately.
Conversion Formula
ft² = nD × 1.062315363e-20
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 Foot squared
The square foot (ft²) equals (0.3048 m)² = 9.290 304 × 10⁻² m² ≈ 9.41 × 10¹³ D. An imperial area unit included for unit-conversion completeness; it occasionally appears in US geotechnical reports where flow cross-sections are expressed in square feet. 1 ft² = 144 in² = 9.290 304 × 10⁻² m².
Quick Reference Table
| Nanodarcy (nD) | Foot squared (ft²) |
|---|---|
| 1 nD | 1.062 × 10-20 ft² |
| 2 nD | 2.125 × 10-20 ft² |
| 5 nD | 5.312 × 10-20 ft² |
| 10 nD | 1.062 × 10-19 ft² |
| 25 nD | 2.656 × 10-19 ft² |
| 50 nD | 5.312 × 10-19 ft² |
| 100 nD | 1.062 × 10-18 ft² |