Convert inch of water column to pascal
1 in w.g. = 249.0889083 Pa
1 in w.g. = 249.09 Pa
1 in w.g. in every pressure unit
| microbar | 2,490.9 μbar |
| barye | 2,490.9 Ba |
| millitorr | 1,868.3 mTorr |
| pascal | 249.09 Pa |
| millimeter of water column | 25.4 mmH₂O |
| pound per square foot | 5.2023 lb/ft² |
| centimeter of water column | 2.54 cmH₂O |
| hectopascal | 2.4909 hPa |
| millibar | 2.4909 mbar |
| torr | 1.8683 Torr |
| millimeter of mercury | 1.8683 mmHg |
| inch of water column | 1 in w.g. |
| kilopascal | 0.24909 kPa |
| foot of water column | 0.083333 ft H₂O |
| inch of mercury | 0.073556 inHg |
| pound per square inch | 0.036127 psi |
| meter of water column | 0.0254 m H₂O |
| decibar | 0.024909 dbar |
| kilogram-force per square centimeter | 0.00254 kgf/cm² |
| bar | 0.0024909 bar |
| atmosphere | 0.0024583 atm |
| megapascal | 0.00024909 MPa |
| kip per square inch | 0.000036127 ksi |
| gigapascal | 2.4909e-07 GPa |
| million pounds per square inch | 3.6127e-08 Mpsi |
How the conversion works
Multiply by 249.0889083 to go from inch of water column to pascal, or divide by it to go back. Every conversion on this site routes through the SI value (Pa) rather than a table of pairwise factors, so a round-trip returns exactly what you started with.
Going the other way? pascal to inch of water column — 1 Pa = 0.004014630787 in w.g..
inch of water column to pascal — common values
| 1 in w.g. | 249.08891 Pa |
| 2 in w.g. | 498.17782 Pa |
| 3 in w.g. | 747.26672 Pa |
| 5 in w.g. | 1,245.4445 Pa |
| 10 in w.g. | 2,490.8891 Pa |
| 15 in w.g. | 3,736.3336 Pa |
| 20 in w.g. | 4,981.7782 Pa |
| 25 in w.g. | 6,227.2227 Pa |
| 50 in w.g. | 12,454.445 Pa |
| 75 in w.g. | 18,681.668 Pa |
| 100 in w.g. | 24,908.891 Pa |
| 250 in w.g. | 62,272.227 Pa |
| 500 in w.g. | 124,544.45 Pa |
| 1000 in w.g. | 249,088.91 Pa |