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Convert millimeter of mercury to hectopascal

Here you can quickly calculate how many hectopascal fit in one millimeter of mercury.
  • 1 mmHg = 1.333224 hPa
  • 1 hPa = 0.750062 mmHg

Millimeter of mercury to hectopascal conversion table

millimeter of mercury hectopascal
1 1.333224
2 2.666448
5 6.666119
10 13.332239
20 26.664477
50 66.661194
100 133.322387

Formula to convert millimeter of mercury to hectopascal

To convert millimeter of mercury to hectopascal, multiply by 1.333224.

1 mmHg = 1.333224 hPa
Example: 1 millimeter of mercury = 1.333224 hectopascal

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.
  • 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 millimeter of mercury to/from hectopascal conversion quiz

Score: 0

102 millimeter of mercury equals 136 hectopascal.

Correct answer: 102 millimeter of mercury = 136 hectopascal.

6.4 millimeter of mercury equals 7.25 hectopascal.

Correct answer: 6.4 millimeter of mercury = 8.53 hectopascal.

120 hectopascal equals 90 millimeter of mercury.

Correct answer: 120 hectopascal = 90 millimeter of mercury.

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