Convert foot of water column to kilopascal
1 ft H₂O = 2.9890669 kPa
| microbar | 29,900 μbar |
| barye | 29,900 Ba |
| millitorr | 22,400 mTorr |
| pascal | 2,990 Pa |
| millimeter of water column | 305 mmH₂O |
| pound per square foot | 62.4 lb/ft² |
| centimeter of water column | 30.5 cmH₂O |
| hectopascal | 29.9 hPa |
| millibar | 29.9 mbar |
| torr | 22.4 Torr |
| millimeter of mercury | 22.4 mmHg |
| inch of water column | 12 in w.g. |
| kilopascal | 2.99 kPa |
| foot of water column | 1 ft H₂O |
| inch of mercury | 0.883 inHg |
| pound per square inch | 0.434 psi |
| meter of water column | 0.305 m H₂O |
| decibar | 0.299 dbar |
| kilogram-force per square centimeter | 0.0305 kgf/cm² |
| bar | 0.0299 bar |
| atmosphere | 0.0295 atm |
| megapascal | 0.00299 MPa |
| kip per square inch | 0.000434 ksi |
| gigapascal | 0.00000299 GPa |
| million pounds per square inch | 4.34e-07 Mpsi |
foot of water column: Head in feet of water is only equal to pressure when the fluid is water. A centrifugal pump develops a head in feet that is nearly independent of fluid density, but the pressure it produces is proportional to density, so pumping a fluid of specific gravity 1.3 gives 30 percent more pressure for the same head. Also check the reference temperature: values quoted at 39.2 °F, 60 °F and 68 °F differ in the fourth digit. Full definition →
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.
| 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 |