Convert pascal to inch of water column
1 Pa = 0.004014630787 in w.g.
| microbar | 10 μbar |
| barye | 10 Ba |
| millitorr | 7.5 mTorr |
| pascal | 1 Pa |
| millimeter of water column | 0.102 mmH₂O |
| pound per square foot | 0.0209 lb/ft² |
| centimeter of water column | 0.0102 cmH₂O |
| hectopascal | 0.01 hPa |
| millibar | 0.01 mbar |
| torr | 0.0075 Torr |
| millimeter of mercury | 0.0075 mmHg |
| inch of water column | 0.00401 in w.g. |
| kilopascal | 0.001 kPa |
| foot of water column | 0.000335 ft H₂O |
| inch of mercury | 0.000295 inHg |
| pound per square inch | 0.000145 psi |
| meter of water column | 0.000102 m H₂O |
| decibar | 0.0001 dbar |
| kilogram-force per square centimeter | 0.0000102 kgf/cm² |
| bar | 0.00001 bar |
| atmosphere | 0.00000987 atm |
| megapascal | 0.000001 MPa |
| kip per square inch | 1.45e-07 ksi |
| gigapascal | 1.00e-09 GPa |
| million pounds per square inch | 1.45e-10 Mpsi |
inch of water column: This is a very small pressure, about 1/28 of a psi, and its smallness is the point: a whole air handling system might operate at 2 in w.g. Confusing it with psi overstates duct pressure by a factor of 28. Note also that natural gas appliance manifold pressure is typically 3.5 in w.g. and propane 10 to 11 in w.g., so the unit is what a manometer on a gas valve is actually reading. Full definition →
Multiply by 0.004014630787 to go from pascal to inch of water column, 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? inch of water column to pascal: 1 in w.g. = 249.0889083 Pa.
| 1 Pa | 0.0040146308 in w.g. |
| 2 Pa | 0.0080292616 in w.g. |
| 3 Pa | 0.012043892 in w.g. |
| 5 Pa | 0.020073154 in w.g. |
| 10 Pa | 0.040146308 in w.g. |
| 15 Pa | 0.060219462 in w.g. |
| 20 Pa | 0.080292616 in w.g. |
| 25 Pa | 0.10036577 in w.g. |
| 50 Pa | 0.20073154 in w.g. |
| 75 Pa | 0.30109731 in w.g. |
| 100 Pa | 0.40146308 in w.g. |
| 250 Pa | 1.0036577 in w.g. |
| 500 Pa | 2.0073154 in w.g. |
| 1000 Pa | 4.0146308 in w.g. |