›› Convert millimeter of mercury [0 °C] to millimeter water [4 °C]


millimeter of mercury
mm H2O


›› More information from the unit converter

How many millimeter of mercury in 1 mm H2O? The answer is 0.073555912101486.
We assume you are converting between millimeter of mercury [0 °C] and millimeter water [4 °C].
You can view more details on each measurement unit:
millimeter of mercury or mm H2O
The SI derived unit for pressure is the pascal.
1 pascal is equal to 0.0075006156130264 millimeter of mercury, or 0.10197162129779 mm H2O.
Note that rounding errors may occur, so always check the results.
Use this page to learn how to convert between millimeters of mercury and millimeters water.
Type in your own numbers in the form to convert the units!


›› Quick conversion chart of millimeter of mercury to mm H2O

1 millimeter of mercury to mm H2O = 13.5951 mm H2O

2 millimeter of mercury to mm H2O = 27.1902 mm H2O

3 millimeter of mercury to mm H2O = 40.7853 mm H2O

4 millimeter of mercury to mm H2O = 54.3804 mm H2O

5 millimeter of mercury to mm H2O = 67.9755 mm H2O

6 millimeter of mercury to mm H2O = 81.5706 mm H2O

7 millimeter of mercury to mm H2O = 95.1657 mm H2O

8 millimeter of mercury to mm H2O = 108.7608 mm H2O

9 millimeter of mercury to mm H2O = 122.3559 mm H2O

10 millimeter of mercury to mm H2O = 135.951 mm H2O



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›› Common pressure conversions

millimeter of mercury to femtobar
millimeter of mercury to ton/square inch
millimeter of mercury to kilopond/square meter
millimeter of mercury to centimeter mercury
millimeter of mercury to centitorr
millimeter of mercury to millibar
millimeter of mercury to zeptopascal
millimeter of mercury to centihg
millimeter of mercury to foot of air
millimeter of mercury to foot of mercury


›› 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.


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