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Convert inch of mercury to millibar

Here you can quickly calculate how many millibar fit in one inch of mercury.
  • 1 inHg = 33.863887 mbar
  • 1 mbar = 0.02953 inHg

Inch of mercury to millibar conversion table

inch of mercury millibar
1 33.863887
2 67.727773
5 169.319434
10 338.638867
20 677.277735
50 1693.194337
100 3386.388675

Inch of mercury to millibar formula

To convert inch of mercury to millibar, multiply by 33.863887.

1 inHg = 33.863887 mbar
Example: 1 inch of mercury = 33.863887 millibar

Common pressure conversion mistakes

  • Blood pressure uses mmHg (120/80) and weather reports use hPa (around 1,013), different units that must not be mixed: 760 mmHg = 1,013.25 hPa. One mmHg is about 1.33 hPa.
  • Hectopascals and millibars are exactly the same size: 1 hPa = 1 mbar. A chart showing 1,013 mbar and one showing 1,013 hPa agree perfectly, no conversion needed. Meteorology simply renamed the unit.

Quick inch of mercury and millibar conversion quiz

Score: 0

197 inch of mercury equals 6.67e+3 millibar.

Correct answer: 197 inch of mercury = 6.67e+3 millibar.

191 millibar equals 5.64 inch of mercury.

Correct answer: 191 millibar = 5.64 inch of mercury.

11.2 millibar equals 0.496 inch of mercury.

Correct answer: 11.2 millibar = 0.331 inch of mercury.

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