Convert inch of mercury to inch of water column
1 inHg = 13.59510009 in w.g.
1 inHg = 13.595 in w.g.
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 13.59510009 to go from inch of mercury 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 inch of mercury — 1 in w.g. = 0.07355591303 inHg.
inch of mercury to inch of water column — common values
| 1 inHg | 13.5951 in w.g. |
| 2 inHg | 27.1902 in w.g. |
| 3 inHg | 40.7853 in w.g. |
| 5 inHg | 67.9755 in w.g. |
| 10 inHg | 135.951 in w.g. |
| 15 inHg | 203.9265 in w.g. |
| 20 inHg | 271.902 in w.g. |
| 25 inHg | 339.8775 in w.g. |
| 50 inHg | 679.755 in w.g. |
| 75 inHg | 1,019.6325 in w.g. |
| 100 inHg | 1,359.51 in w.g. |
| 250 inHg | 3,398.775 in w.g. |
| 500 inHg | 6,797.55 in w.g. |
| 1000 inHg | 13,595.1 in w.g. |
Other pressure conversions
Pa → in w.g.kPa → in w.g.MPa → in w.g.bar → in w.g.atm → in w.g.psi → in w.g.mmHg → in w.g.inHg → Pa