Barometric Pressure - Pressure in psi, psf and kPa
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Relation between barometric pressure in inches Hg - Mercury - and pressure in pounds per square inch and pound per square foot are indicated below:
| Barometer (inches Hg) | Pressure (psi) | Pressure (psf) |
|---|---|---|
| 28.00 | 13.75 | 1980 |
| 28.25 | 13.87 | 1997 |
| 28.50 | 13.99 | 2015 |
| 28.75 | 14.12 | 2033 |
| 29.00 | 14.24 | 2050 |
| 29.25 | 14.36 | 2069 |
| 29.50 | 14.48 | 2086 |
| 29.75 | 14.61 | 2103 |
| 29.92* | 14.7 | 2116 |
| 30.00 | 14.75 | 2121 |
| 30.25 | 14.85 | 2139 |
| 30.50 | 14.98 | 2156 |
| 30.75 | 15.10 | 2174 |
| 31.00 | 15.22 | 2192 |
| 31.25 | 15.34 | 2210 |
- 1 psi (lb/in2) = 144 psf (lbf/ft2) = 6894.8 Pa (N/m2) = 6.895x10-2 bar = 27.71 in H2O at 62oF (16.7oC) = 703.1 mm H2O at 62oF (16.7oC)
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