Skip to content

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

Millimeter of mercury to hectopascal formula

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 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 millimeter of mercury and hectopascal conversion quiz

Score: 0

12.4 hectopascal equals 10.2 millimeter of mercury.

Correct answer: 12.4 hectopascal = 9.3 millimeter of mercury.

122 millimeter of mercury equals 187 hectopascal.

Correct answer: 122 millimeter of mercury = 163 hectopascal.

88 millimeter of mercury equals 117 hectopascal.

Correct answer: 88 millimeter of mercury = 117 hectopascal.

More pressure conversions