Low Pressure Units
A reference table showing conversion values between commonly used low pressure units.
| Unit | mH₂O | ftH₂O | cmHg | inHg | inH₂O | Pa |
|---|---|---|---|---|---|---|
| Meter of Water (mH₂O) | 1 | 3.280696 | 7.356339 | 2.896043 | 39.36572 | 9806 |
| Foot of Water (ftH₂O) | 0.304813 | 1 | 2.242311 | 0.882753 | 11.9992 | 2989 |
| Centimeter of Mercury (cmHg) | 0.135937 | 0.445969 | 1 | 0.39368 | 5.351265 | 1333 |
| Inches of Mercury (inHg) | 0.345299 | 1.13282 | 2.540135 | 1 | 13.59293 | 3386 |
| Inches of Water (inH₂O) | 0.025403 | 0.083339 | 0.186872 | 0.073568 | 1 | 249.1 |
| Pascal (Pa) | 0.000102 | 0.000335 | 0.00075 | 0.000295 | 0.004014 | 1 |