Convert inch of mercury to kilopascal
1 inHg = 3.38638864 kPa
1 inHg = 3.3864 kPa
1 inHg in every pressure unit
| microbar | 33,864 μbar |
| barye | 33,864 Ba |
| millitorr | 25,400 mTorr |
| pascal | 3,386.4 Pa |
| millimeter of water column | 345.32 mmH₂O |
| pound per square foot | 70.726 lb/ft² |
| centimeter of water column | 34.532 cmH₂O |
| hectopascal | 33.864 hPa |
| millibar | 33.864 mbar |
| torr | 25.4 Torr |
| millimeter of mercury | 25.4 mmHg |
| inch of water column | 13.595 in w.g. |
| kilopascal | 3.3864 kPa |
| foot of water column | 1.1329 ft H₂O |
| inch of mercury | 1 inHg |
| pound per square inch | 0.49115 psi |
| meter of water column | 0.34532 m H₂O |
| decibar | 0.33864 dbar |
| kilogram-force per square centimeter | 0.034532 kgf/cm² |
| bar | 0.033864 bar |
| atmosphere | 0.033421 atm |
| megapascal | 0.0033864 MPa |
| kip per square inch | 0.00049115 ksi |
| gigapascal | 0.0000033864 GPa |
| million pounds per square inch | 4.9115e-07 Mpsi |
How the conversion works
Multiply by 3.38638864 to go from inch of mercury 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 inch of mercury — 1 kPa = 0.295299833 inHg.
inch of mercury to kilopascal — common values
| 1 inHg | 3.3863886 kPa |
| 2 inHg | 6.7727773 kPa |
| 3 inHg | 10.159166 kPa |
| 5 inHg | 16.931943 kPa |
| 10 inHg | 33.863886 kPa |
| 15 inHg | 50.79583 kPa |
| 20 inHg | 67.727773 kPa |
| 25 inHg | 84.659716 kPa |
| 50 inHg | 169.31943 kPa |
| 75 inHg | 253.97915 kPa |
| 100 inHg | 338.63886 kPa |
| 250 inHg | 846.59716 kPa |
| 500 inHg | 1,693.1943 kPa |
| 1000 inHg | 3,386.3886 kPa |