How many in H2O in 1 mmH2O? The answer is 0.039370079003585. We assume you are converting between inch water [4 °C] and millimeter of water [4 °C]. You can view more details on each measurement unit: in H2O or mmH2O The SI derived unit for pressure is the pascal. 1 pascal is equal to 0.0040146307866177 in H2O, or 0.10197162129779 mmH2O. Note that rounding errors may occur, so always check the results. Use this page to learn how to convert between inches water and millimeters of water. Type in your own numbers in the form to convert the units!
1 in H2O to mmH2O = 25.4 mmH2O
2 in H2O to mmH2O = 50.8 mmH2O
3 in H2O to mmH2O = 76.2 mmH2O
4 in H2O to mmH2O = 101.6 mmH2O
5 in H2O to mmH2O = 127 mmH2O
6 in H2O to mmH2O = 152.4 mmH2O
7 in H2O to mmH2O = 177.8 mmH2O
8 in H2O to mmH2O = 203.2 mmH2O
9 in H2O to mmH2O = 228.6 mmH2O
10 in H2O to mmH2O = 254 mmH2O
You can do the reverse unit conversion from mmH2O to in H2O, or enter any two units below:
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