Convert foot of water column to bar
1 ft H₂O = 0.029890669 bar
1 ft H₂O = 0.029891 bar
1 ft H₂O in every pressure unit
| microbar | 29,891 μbar |
| barye | 29,891 Ba |
| millitorr | 22,420 mTorr |
| pascal | 2,989.1 Pa |
| millimeter of water column | 304.8 mmH₂O |
| pound per square foot | 62.428 lb/ft² |
| centimeter of water column | 30.48 cmH₂O |
| hectopascal | 29.891 hPa |
| millibar | 29.891 mbar |
| torr | 22.42 Torr |
| millimeter of mercury | 22.42 mmHg |
| inch of water column | 12 in w.g. |
| kilopascal | 2.9891 kPa |
| foot of water column | 1 ft H₂O |
| inch of mercury | 0.88267 inHg |
| pound per square inch | 0.43353 psi |
| meter of water column | 0.3048 m H₂O |
| decibar | 0.29891 dbar |
| kilogram-force per square centimeter | 0.03048 kgf/cm² |
| bar | 0.029891 bar |
| atmosphere | 0.0295 atm |
| megapascal | 0.0029891 MPa |
| kip per square inch | 0.00043353 ksi |
| gigapascal | 0.0000029891 GPa |
| million pounds per square inch | 4.3353e-07 Mpsi |
How the conversion works
Multiply by 0.029890669 to go from foot 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 foot of water column — 1 bar = 33.45525656 ft H₂O.
foot of water column to bar — common values
| 1 ft H₂O | 0.029890669 bar |
| 2 ft H₂O | 0.059781338 bar |
| 3 ft H₂O | 0.089672007 bar |
| 5 ft H₂O | 0.14945334 bar |
| 10 ft H₂O | 0.29890669 bar |
| 15 ft H₂O | 0.44836003 bar |
| 20 ft H₂O | 0.59781338 bar |
| 25 ft H₂O | 0.74726673 bar |
| 50 ft H₂O | 1.4945335 bar |
| 75 ft H₂O | 2.2418002 bar |
| 100 ft H₂O | 2.9890669 bar |
| 250 ft H₂O | 7.4726672 bar |
| 500 ft H₂O | 14.945334 bar |
| 1000 ft H₂O | 29.890669 bar |
Other pressure conversions
Pa → barkPa → barMPa → baratm → barpsi → barmmHg → barinHg → barft H₂O → Pa