## ››Convert bar to millimeter water [4 °C]

 bar mm H2O

How many bar in 1 mm H2O? The answer is 9.80665E-5.
We assume you are converting between bar and millimeter water [4 °C].
You can view more details on each measurement unit:
bar or mm H2O
The SI derived unit for pressure is the pascal.
1 pascal is equal to 1.0E-5 bar, 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 bars and millimeters water.
Type in your own numbers in the form to convert the units!

## ››Quick conversion chart of bar to mm H2O

1 bar to mm H2O = 10197.16213 mm H2O

2 bar to mm H2O = 20394.32426 mm H2O

3 bar to mm H2O = 30591.48639 mm H2O

4 bar to mm H2O = 40788.64852 mm H2O

5 bar to mm H2O = 50985.81065 mm H2O

6 bar to mm H2O = 61182.97278 mm H2O

7 bar to mm H2O = 71380.13491 mm H2O

8 bar to mm H2O = 81577.29704 mm H2O

9 bar to mm H2O = 91774.45917 mm H2O

10 bar to mm H2O = 101971.6213 mm H2O

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You can do the reverse unit conversion from mm H2O to bar, or enter any two units below:

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## ››Definition: Bar

The bar is a measurement unit of pressure, equal to 1,000,000 dynes per square centimetre (baryes), or 100,000 newtons per square metre (pascals). The word bar is of Greek origin, báros meaning weight. Its official symbol is "bar"; the earlier "b" is now deprecated, but still often seen especially as "mb" rather than the proper "mbar" for millibars.

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