Convert kilopascal to foot of water column

1 kPa = 0.3345525656 ft H₂O

sig figs
1 kPa = 0.335 ft H₂O
1 kPa in every pressure unit
microbar10,000 μbar
barye10,000 Ba
millitorr7,500 mTorr
pascal1,000 Pa
millimeter of water column102 mmH₂O
pound per square foot20.9 lb/ft²
centimeter of water column10.2 cmH₂O
hectopascal10 hPa
millibar10 mbar
torr7.5 Torr
millimeter of mercury7.5 mmHg
inch of water column4.01 in w.g.
kilopascal1 kPa
foot of water column0.335 ft H₂O
inch of mercury0.295 inHg
pound per square inch0.145 psi
meter of water column0.102 m H₂O
decibar0.1 dbar
kilogram-force per square centimeter0.0102 kgf/cm²
bar0.01 bar
atmosphere0.00987 atm
megapascal0.001 MPa
kip per square inch0.000145 ksi
gigapascal0.000001 GPa
million pounds per square inch1.45e-07 Mpsi
Worth knowing

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 →

How the conversion works

Multiply by 0.3345525656 to go from kilopascal 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 kilopascal: 1 ft H₂O = 2.9890669 kPa.

kilopascal to foot of water column: common values
1 kPa0.33455257 ft H₂O
2 kPa0.66910513 ft H₂O
3 kPa1.0036577 ft H₂O
5 kPa1.6727628 ft H₂O
10 kPa3.3455257 ft H₂O
15 kPa5.0182885 ft H₂O
20 kPa6.6910513 ft H₂O
25 kPa8.3638141 ft H₂O
50 kPa16.727628 ft H₂O
75 kPa25.091442 ft H₂O
100 kPa33.455257 ft H₂O
250 kPa83.638141 ft H₂O
500 kPa167.27628 ft H₂O
1000 kPa334.55257 ft H₂O