›› Measurement unit: millimeter of mercury

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 0.0075006156130264 millimeter of mercury.


›› Convert millimeter of mercury to another unit

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›› 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: millimeter of mercury

millimeter of mercury to dekabar
millimeter of mercury to millitorr
millimeter of mercury to zeptopascal
millimeter of mercury to atmosphere [standard]
millimeter of mercury to terabar
millimeter of mercury to centimeter of mercury [0 °C]
millimeter of mercury to femtobar
millimeter of mercury to attobar
millimeter of mercury to torr
millimeter of mercury to pound/square inch [gauge]