Convert pound per square inch to foot of water column
1 psi = 2.306658741 ft H₂O
1 psi = 2.31 ft H₂O
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 2.306658741 to go from pound per square inch to foot 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? foot of water column to pound per square inch — 1 ft H₂O = 0.4335275011 psi.
pound per square inch to foot of water column — common values
| 1 psi | 2.3066587 ft H₂O |
| 2 psi | 4.6133175 ft H₂O |
| 3 psi | 6.9199762 ft H₂O |
| 5 psi | 11.533294 ft H₂O |
| 10 psi | 23.066587 ft H₂O |
| 15 psi | 34.599881 ft H₂O |
| 20 psi | 46.133175 ft H₂O |
| 25 psi | 57.666469 ft H₂O |
| 50 psi | 115.33294 ft H₂O |
| 75 psi | 172.99941 ft H₂O |
| 100 psi | 230.66587 ft H₂O |
| 250 psi | 576.66469 ft H₂O |
| 500 psi | 1,153.3294 ft H₂O |
| 1000 psi | 2,306.6587 ft H₂O |
Other pressure conversions
Pa → ft H₂OkPa → ft H₂OMPa → ft H₂Obar → ft H₂Oatm → ft H₂Opsi → Papsi → kPapsi → MPa