Convert inch of water column to millimeter of mercury

1 in w.g. = 1.868320191 mmHg

1 in w.g. = 1.8683 mmHg
1 in w.g. in every pressure unit
microbar2,490.9 μbar
barye2,490.9 Ba
millitorr1,868.3 mTorr
pascal249.09 Pa
millimeter of water column25.4 mmH₂O
pound per square foot5.2023 lb/ft²
centimeter of water column2.54 cmH₂O
hectopascal2.4909 hPa
millibar2.4909 mbar
torr1.8683 Torr
millimeter of mercury1.8683 mmHg
inch of water column1 in w.g.
kilopascal0.24909 kPa
foot of water column0.083333 ft H₂O
inch of mercury0.073556 inHg
pound per square inch0.036127 psi
meter of water column0.0254 m H₂O
decibar0.024909 dbar
kilogram-force per square centimeter0.00254 kgf/cm²
bar0.0024909 bar
atmosphere0.0024583 atm
megapascal0.00024909 MPa
kip per square inch0.000036127 ksi
gigapascal2.4909e-07 GPa
million pounds per square inch3.6127e-08 Mpsi
How the conversion works

Multiply by 1.868320191 to go from inch of water column to millimeter of mercury, 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? millimeter of mercury to inch of water column — 1 mmHg = 0.5352401611 in w.g..

inch of water column to millimeter of mercury — common values
1 in w.g.1.8683202 mmHg
2 in w.g.3.7366404 mmHg
3 in w.g.5.6049606 mmHg
5 in w.g.9.341601 mmHg
10 in w.g.18.683202 mmHg
15 in w.g.28.024803 mmHg
20 in w.g.37.366404 mmHg
25 in w.g.46.708005 mmHg
50 in w.g.93.41601 mmHg
75 in w.g.140.12401 mmHg
100 in w.g.186.83202 mmHg
250 in w.g.467.08005 mmHg
500 in w.g.934.1601 mmHg
1000 in w.g.1,868.3202 mmHg