Millimeters of mercury to Hectopascals converter

To convert millimeters of mercury to hectopascals, enter the value in the first field. The result in hectopascals is calculated automatically using the exact conversion factor.

1 mmHg = 1.33322387415 hPa
1 hPa ≈ 0.750061575846 mmHg

Formula: hPa = mmHg × 1.33322387415
mmHg ≈ hPa × 0.750061575846

Definitions: 1 mmHg = 133.322387415 Pa; 1 hPa = 100 Pa

The millimeter of mercury (mmHg) is the pressure at the base of a one-millimeter column of mercury. It is the unit of blood pressure in medicine, for example 120/80 mmHg, and is also used for some barometric and vacuum readings.

The hectopascal (hPa) equals 100 pascals and is exactly the same as one millibar. It is the unit weather services use for atmospheric pressure, with average sea-level pressure around 1013 hPa.

See the conversion table with commonly used values, handy for quick reference or study.