Convert kilopascal to inch of water column
1 kPa = 4.014630787 in w.g.
1 kPa = 4.0146 in w.g.
1 kPa in every pressure unit
| microbar | 10,000 μbar |
| barye | 10,000 Ba |
| millitorr | 7,500.6 mTorr |
| pascal | 1,000 Pa |
| millimeter of water column | 101.97 mmH₂O |
| pound per square foot | 20.885 lb/ft² |
| centimeter of water column | 10.197 cmH₂O |
| hectopascal | 10 hPa |
| millibar | 10 mbar |
| torr | 7.5006 Torr |
| millimeter of mercury | 7.5006 mmHg |
| inch of water column | 4.0146 in w.g. |
| kilopascal | 1 kPa |
| foot of water column | 0.33455 ft H₂O |
| inch of mercury | 0.2953 inHg |
| pound per square inch | 0.14504 psi |
| meter of water column | 0.10197 m H₂O |
| decibar | 0.1 dbar |
| kilogram-force per square centimeter | 0.010197 kgf/cm² |
| bar | 0.01 bar |
| atmosphere | 0.0098692 atm |
| megapascal | 0.001 MPa |
| kip per square inch | 0.00014504 ksi |
| gigapascal | 0.000001 GPa |
| million pounds per square inch | 1.4504e-07 Mpsi |
How the conversion works
Multiply by 4.014630787 to go from kilopascal to inch 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? inch of water column to kilopascal — 1 in w.g. = 0.2490889083 kPa.
kilopascal to inch of water column — common values
| 1 kPa | 4.0146308 in w.g. |
| 2 kPa | 8.0292616 in w.g. |
| 3 kPa | 12.043892 in w.g. |
| 5 kPa | 20.073154 in w.g. |
| 10 kPa | 40.146308 in w.g. |
| 15 kPa | 60.219462 in w.g. |
| 20 kPa | 80.292616 in w.g. |
| 25 kPa | 100.36577 in w.g. |
| 50 kPa | 200.73154 in w.g. |
| 75 kPa | 301.09731 in w.g. |
| 100 kPa | 401.46308 in w.g. |
| 250 kPa | 1,003.6577 in w.g. |
| 500 kPa | 2,007.3154 in w.g. |
| 1000 kPa | 4,014.6308 in w.g. |
Other pressure conversions
Pa → in w.g.kPa → PakPa → MPakPa → barkPa → atmkPa → psikPa → mmHgkPa → inHg