How many millibar in 1 mm H2O?
The answer is 0.0980665.
We assume you are converting between millibar and millimeter water [4 °C].
You can view more details on each measurement unit:
millibar or mm H2O
The SI derived unit for pressure is the pascal.
1 pascal is equal to 0.01 millibar, 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 millibars and millimeters water.
Type in your own numbers in the form to convert the units!
You can do the reverse unit conversion from mm H2O to millibar, or enter any two units below:
A millibar (mb) is 1/1000th of a bar, a unit for measurement of pressure. It is not an SI unit of measure, however it is one of the units used in meteorology when describing atmospheric pressure. The SI unit is the pascal (Pa), with 1 millibar = 100 pascals (a hectopascal)
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