Convert foot of water column to megapascal
1 ft H₂O = 0.0029890669 MPa
| 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 0.0029890669 to go from foot of water column to megapascal, 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? megapascal to foot of water column: 1 MPa = 334.5525656 ft H₂O.
| 1 ft H₂O | 0.0029890669 MPa |
| 2 ft H₂O | 0.0059781338 MPa |
| 3 ft H₂O | 0.0089672007 MPa |
| 5 ft H₂O | 0.014945334 MPa |
| 10 ft H₂O | 0.029890669 MPa |
| 15 ft H₂O | 0.044836003 MPa |
| 20 ft H₂O | 0.059781338 MPa |
| 25 ft H₂O | 0.074726672 MPa |
| 50 ft H₂O | 0.14945334 MPa |
| 75 ft H₂O | 0.22418002 MPa |
| 100 ft H₂O | 0.29890669 MPa |
| 250 ft H₂O | 0.74726673 MPa |
| 500 ft H₂O | 1.4945335 MPa |
| 1000 ft H₂O | 2.9890669 MPa |