Convert foot of water column to kilopascal
1 ft H₂O = 2.9890669 kPa
1 ft H₂O = 2.9891 kPa
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 2.9890669 to go from foot of water column to kilopascal, 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? kilopascal to foot of water column — 1 kPa = 0.3345525656 ft H₂O.
foot of water column to kilopascal — common values
| 1 ft H₂O | 2.9890669 kPa |
| 2 ft H₂O | 5.9781338 kPa |
| 3 ft H₂O | 8.9672007 kPa |
| 5 ft H₂O | 14.945334 kPa |
| 10 ft H₂O | 29.890669 kPa |
| 15 ft H₂O | 44.836003 kPa |
| 20 ft H₂O | 59.781338 kPa |
| 25 ft H₂O | 74.726673 kPa |
| 50 ft H₂O | 149.45335 kPa |
| 75 ft H₂O | 224.18002 kPa |
| 100 ft H₂O | 298.90669 kPa |
| 250 ft H₂O | 747.26672 kPa |
| 500 ft H₂O | 1,494.5334 kPa |
| 1000 ft H₂O | 2,989.0669 kPa |
Other pressure conversions
Pa → kPaMPa → kPabar → kPaatm → kPapsi → kPammHg → kPainHg → kPaft H₂O → Pa