›› Measurement unit: mmHg

Full name: millimeter of mercury [0 C]

Plural form: millimeters of mercury

Symbol: mmHg

Alternate spelling: mm of mercury

Category type: pressure

Scale factor: 133.32239


›› SI unit: pascal

The SI derived unit for pressure is the pascal.
1 pascal is equal to 0.00750061561303 mmHg.


›› Convert mmHg to another unit

Convert mmHg to  

Valid units must be of the pressure type.
You can use this form to select from known units:

Convert mmHg to  

I'm feeling lucky, show me some random units


›› Definition: Millimeter of mercury

The torr (symbol: Torr) or millimetre of mercury (mmHg) is a non-SI unit of pressure. It is the atmospheric pressure that supports a column of mercury 1 millimetre high. The unit is named after Evangelista Torricelli, Italian physicist and mathematician, for his discovery of the principle of the barometer in 1643.


›› Sample conversions: mmHg

mmHg to decitorr
mmHg to foot water [4 C]
mmHg to terapascal
mmHg to ounce/square inch
mmHg to zettapascal
mmHg to millimeter mercury [0 C]
mmHg to exabar
mmHg to foot of air [15 C]
mmHg to pound/square foot
mmHg to yoctopascal