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Convert millimeter of mercury to inch of mercury

Here you can quickly calculate how many inch of mercury fit in one millimeter of mercury.
  • 1 mmHg = 0.03937 inHg
  • 1 inHg = 25.4 mmHg

Millimeter of mercury to inch of mercury conversion table

millimeter of mercury inch of mercury
1 0.03937
2 0.07874
5 0.19685
10 0.393701
20 0.787402
50 1.968504
100 3.937008

Formula to convert millimeter of mercury to inch of mercury

To convert millimeter of mercury to inch of mercury, multiply by 0.03937.

1 mmHg = 0.03937 inHg
Example: 1 millimeter of mercury = 0.03937 inch of mercury

Common mistakes in pressure conversion

  • 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.

Quick millimeter of mercury to/from inch of mercury conversion quiz

Score: 0

245 inch of mercury equals 3.11e+3 millimeter of mercury.

Correct answer: 245 inch of mercury = 6.22e+3 millimeter of mercury.

21.7 inch of mercury equals 276 millimeter of mercury.

Correct answer: 21.7 inch of mercury = 551 millimeter of mercury.

20 millimeter of mercury equals 0.787 inch of mercury.

Correct answer: 20 millimeter of mercury = 0.787 inch of mercury.

More conversions in pressure