Permeability Converter

Convert between all permeability units instantly. Select your units from the dropdowns below and enter a value to see the conversion in real-time.

SI unit: square metre (m²)

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Conversion Formula

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About Permeability Units

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Common Permeability Conversions

1 D = 1 000 mD = 10⁶ µD = 10⁹ nD
1 D ≈ 9.869 × 10^-13 m² ≈ 0.9869 µm² (less than 1 µm²)
1 µm² ≈ 1.0133 D (the SI-consistent near-equivalent of the darcy)
1 mD ≈ 9.869 × 10^-16 m² = 9.869 × 10^-4 nm²
Shale gas matrix: 1-1 000 nD; tight sandstone: 0.01-1 mD; good reservoir: 100-1 000 mD
1 kD = 1 000 D = 10⁶ mD (gravel-pack and vuggy carbonate range)
1 µm² = 10⁶ nm² = 10¹² pm²
1 m² = 10¹² µm² ≈ 1.013 × 10¹² D

Direct Converters