Convert inch of water column to millimeter of mercury

1 in w.g. = 1.868320191 mmHg

1 in w.g. = 1.87 mmHg
1 in w.g. in every pressure unit
pascal249 Pa
kilopascal0.249 kPa
megapascal0.000249 MPa
bar0.00249 bar
atmosphere0.00246 atm
millimeter of mercury1.87 mmHg
pound per square inch0.0361 psi
foot of water column0.0833 ft H₂O
gigapascal2.49e-07 GPa
kip per square inch0.0000361 ksi
inch of mercury0.0736 inHg
inch of water column1 in w.g.
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