US perms to nanograms per pascal second square meter
Type a value in perm to get it in ng/(Pa·s·m²) instantly.
That's 1.25× as open as vapor retarder paint, while plasterboard is 30× higher. That is semi-permeable: a wall built with it can still dry.
Convert the other way: ng/(Pa·s·m²) to perm
What it means
How much vapor gets through?
Permeance belongs to a material of a stated thickness. Permeability — perm-inches — belongs to the material itself, and must be divided by the thickness.
The math
How to convert perm to ng/(Pa·s·m²)
To convert US perms to nanograms per pascal second square meter, multiply by 57.4525.
Example: 1 perm × 57.4525 = 57.4525 ng/(Pa·s·m²).
In the other direction, 1 ng/(Pa·s·m²) = 0.0174057 perm.
Every unit
Your permeance in every unit
Tables
perm to ng/(Pa·s·m²) conversion table
| perm | ng/(Pa·s·m²) |
|---|---|
| 0.01 perm | 0.574525 ng/(Pa·s·m²) |
| 0.05 perm | 2.87263 ng/(Pa·s·m²) |
| 0.1 perm | 5.74525 ng/(Pa·s·m²) |
| 0.5 perm | 28.7263 ng/(Pa·s·m²) |
| 1 perm | 57.4525 ng/(Pa·s·m²) |
| 5 perm | 287.263 ng/(Pa·s·m²) |
| 10 perm | 574.525 ng/(Pa·s·m²) |
| 20 perm | 1,149.05 ng/(Pa·s·m²) |
| 50 perm | 2,872.63 ng/(Pa·s·m²) |
| 100 perm | 5,745.25 ng/(Pa·s·m²) |
ng/(Pa·s·m²) to perm conversion table
| ng/(Pa·s·m²) | perm |
|---|---|
| 0.01 ng/(Pa·s·m²) | 0.000174057 perm |
| 0.05 ng/(Pa·s·m²) | 0.000870284 perm |
| 0.1 ng/(Pa·s·m²) | 0.00174057 perm |
| 0.5 ng/(Pa·s·m²) | 0.00870284 perm |
| 1 ng/(Pa·s·m²) | 0.0174057 perm |
| 5 ng/(Pa·s·m²) | 0.0870284 perm |
| 10 ng/(Pa·s·m²) | 0.174057 perm |
| 20 ng/(Pa·s·m²) | 0.348114 perm |
| 50 ng/(Pa·s·m²) | 0.870284 perm |
| 100 ng/(Pa·s·m²) | 1.74057 perm |
Quick answers
Quick answers
- How many ng/(Pa·s·m²) is 1 perm?
- 1 perm is 57.4525 ng/(Pa·s·m²).
- How many ng/(Pa·s·m²) is 10 perm?
- 10 perm is 574.525 ng/(Pa·s·m²).
The units
About these units
US perms (perm)
The US building unit: grains per hour per square foot per inch of mercury.
Nanograms per pascal second square meter (ng/(Pa·s·m²))
The SI unit, used throughout European standards.
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