Convert pound per square inch to inch of water column
1 psi = 27.6799049 in w.g.
1 psi = 27.7 in w.g.
1 psi in every pressure unit
| pascal | 6,890 Pa |
| kilopascal | 6.89 kPa |
| megapascal | 0.00689 MPa |
| bar | 0.0689 bar |
| atmosphere | 0.068 atm |
| millimeter of mercury | 51.7 mmHg |
| pound per square inch | 1 psi |
| foot of water column | 2.31 ft H₂O |
| gigapascal | 0.00000689 GPa |
| kip per square inch | 0.001 ksi |
| inch of mercury | 2.04 inHg |
| inch of water column | 27.7 in w.g. |
How the conversion works
Multiply by 27.6799049 to go from pound per square inch 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 pound per square inch — 1 in w.g. = 0.03612729175 psi.
pound per square inch to inch of water column — common values
| 1 psi | 27.679905 in w.g. |
| 2 psi | 55.35981 in w.g. |
| 3 psi | 83.039715 in w.g. |
| 5 psi | 138.39952 in w.g. |
| 10 psi | 276.79905 in w.g. |
| 15 psi | 415.19857 in w.g. |
| 20 psi | 553.5981 in w.g. |
| 25 psi | 691.99762 in w.g. |
| 50 psi | 1,383.9952 in w.g. |
| 75 psi | 2,075.9929 in w.g. |
| 100 psi | 2,767.9905 in w.g. |
| 250 psi | 6,919.9762 in w.g. |
| 500 psi | 13,839.952 in w.g. |
| 1000 psi | 27,679.905 in w.g. |
Other pressure conversions
Pa → in w.g.kPa → in w.g.MPa → in w.g.bar → in w.g.atm → in w.g.psi → Papsi → kPapsi → MPa