How many mm H2O in 1 foot of air?
The answer is 0.39402739977464.
We assume you are converting between millimeter water [4 °C] and foot of air [0 °C].
You can view more details on each measurement unit: mm H2O or
foot of air
The SI derived unit for pressure is the pascal.
1 pascal is equal to 0.10197162129779 mm H2O, or 0.25879322442072 foot of air.
Note that rounding errors may occur, so always check the results.
Use this page to learn how to convert between millimeters water and feet of air.
Type in your own numbers in the form to convert the units!

››Quick conversion chart of mm H2O to foot of air

1 mm H2O to foot of air = 2.53789 foot of air

5 mm H2O to foot of air = 12.68947 foot of air

10 mm H2O to foot of air = 25.37895 foot of air

15 mm H2O to foot of air = 38.06842 foot of air

20 mm H2O to foot of air = 50.75789 foot of air

25 mm H2O to foot of air = 63.44736 foot of air

30 mm H2O to foot of air = 76.13684 foot of air

40 mm H2O to foot of air = 101.51578 foot of air

50 mm H2O to foot of air = 126.89473 foot of air

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foot of air to mm H2O, or enter any two units below:

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