Convert inch of water column to bar
1 in w.g. = 0.002490889083 bar
1 in w.g. = 0.00249 bar
1 in w.g. in every pressure unit
| pascal | 249 Pa |
| kilopascal | 0.249 kPa |
| megapascal | 0.000249 MPa |
| bar | 0.00249 bar |
| atmosphere | 0.00246 atm |
| millimeter of mercury | 1.87 mmHg |
| pound per square inch | 0.0361 psi |
| foot of water column | 0.0833 ft H₂O |
| gigapascal | 2.49e-07 GPa |
| kip per square inch | 0.0000361 ksi |
| inch of mercury | 0.0736 inHg |
| inch of water column | 1 in w.g. |
How the conversion works
Multiply by 0.002490889083 to go from inch of water column to bar, 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? bar to inch of water column — 1 bar = 401.4630787 in w.g..
inch of water column to bar — common values
| 1 in w.g. | 0.0024908891 bar |
| 2 in w.g. | 0.0049817782 bar |
| 3 in w.g. | 0.0074726672 bar |
| 5 in w.g. | 0.012454445 bar |
| 10 in w.g. | 0.024908891 bar |
| 15 in w.g. | 0.037363336 bar |
| 20 in w.g. | 0.049817782 bar |
| 25 in w.g. | 0.062272227 bar |
| 50 in w.g. | 0.12454445 bar |
| 75 in w.g. | 0.18681668 bar |
| 100 in w.g. | 0.24908891 bar |
| 250 in w.g. | 0.62272227 bar |
| 500 in w.g. | 1.2454445 bar |
| 1000 in w.g. | 2.4908891 bar |
Other pressure conversions
Pa → barkPa → barMPa → baratm → barpsi → barmmHg → barinHg → barft H₂O → bar