Pa to inH2O converter
1 Pa = 0.00401474 inH2O
And 1 inH2O = 249.082 Pa. Pascal to inches of water column.
Formula
inH2O = Pa × 0.00401474
A reading of 15 Pa is 15 × 0.00401474 = 0.0602211 inH2O.
Pa to inH2O table
| Pa | inH2O |
|---|---|
| 1 Pa | 0.00401474 inH2O |
| 5 Pa | 0.0200737 inH2O |
| 10 Pa | 0.0401474 inH2O |
| 15 Pa | 0.0602211 inH2O |
| 30 Pa | 0.120442 inH2O |
| 50 Pa | 0.200737 inH2O |
| 100 Pa | 0.401474 inH2O |
| 500 Pa | 2.00737 inH2O |
| 1,000 Pa | 4.01474 inH2O |
inH2O to Pa table
| inH2O | Pa |
|---|---|
| 1 inH2O | 249.082 Pa |
| 5 inH2O | 1,245.41 Pa |
| 10 inH2O | 2,490.82 Pa |
| 15 inH2O | 3,736.23 Pa |
| 30 inH2O | 7,472.46 Pa |
| 50 inH2O | 12,454.1 Pa |
About these units
Pa (pascal): The SI unit of pressure: one newton per square metre.
inH2O (inches of water column): Low duct and furnace pressures, at the conventional 4 °C water reference.
Gauge pressure (psig, barg) is measured relative to the surrounding atmosphere; absolute pressure (psia, bara) is relative to vacuum. Converting units never changes that reference: absolute = gauge + about 14.696 psi (1.01325 bar) at sea level. Stress uses the same units: 1 MPa = 1 N/mm².
Convert inH2O to Pa instead · All pressure and stress conversions