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Pressure converter

Millimeter of Water to Standard Atmosphere Converter

Converts millimeter of water to standard atmosphere for pressure.

From
To

Result

0.000097 atm

1 mmH2O = 0.000097 atm

Also equals

9.806386Pa
0.009806kPa
0.000098bar
0.001422psi
0.000097atm
0.073554mmHg
0.002896inHg

Conversion formula

atm = mmH2O × 0.0000967815084135

1 millimeter of water equals 0.000096781508 standard atmosphere.

Millimeter of Water to Standard Atmosphere table

Millimeter of Water (mmH2O)Standard Atmosphere (atm)
10.000097
100.000968
1000.009678
2000.019356
3000.029034
5000.048391
1,0000.096782
2,0000.193563
5,0000.483908
10,0000.967815
100,0009.678151

About this conversion

This converter uses the displayed definition for millimeter of water and its recognized relationship to standard atmosphere. Calculations retain full precision internally, and only the visible result is rounded. You can swap the conversion direction without changing the underlying standard.

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Frequently asked questions

How do I convert millimeter of waters to standard atmospheres?+

Enter the millimeter of waters value in the converter. The result uses the defined factor 0.0000967815084135 and is rounded only for display.

Does the converter keep full precision?+

Yes. Calculations retain high precision throughout each step, while the visible result is rounded for readability.

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