How many centimeter water in 1 inch mercury?
The answer is 34.531557667501.

We assume you are converting between **centimeter water [4 °C]** and .

You can view more details on each measurement unit:

centimeter water or
inch mercury

The SI derived unit for **pressure** is the pascal.

1 pascal is equal to 0.010197162129779 centimeter water, or 0.00029529980164712 inch mercury.

Note that rounding errors may occur, so always check the results.

Use this page to learn how to convert between centimeters water and inches mercury.

Type in your own numbers in the form to convert the units!

1 centimeter water to inch mercury = 0.02896 inch mercury

10 centimeter water to inch mercury = 0.28959 inch mercury

20 centimeter water to inch mercury = 0.57918 inch mercury

30 centimeter water to inch mercury = 0.86877 inch mercury

40 centimeter water to inch mercury = 1.15836 inch mercury

50 centimeter water to inch mercury = 1.44795 inch mercury

100 centimeter water to inch mercury = 2.8959 inch mercury

200 centimeter water to inch mercury = 5.7918 inch mercury

You can do the reverse unit conversion from inch mercury to centimeter water, or enter any two units below:

centimeter water to gram/square centimeter

centimeter water to meter of air

centimeter water to yoctobar

centimeter water to dyne/square centimeter

centimeter water to pound/square foot

centimeter water to decibar

centimeter water to millimeter mercury

centimeter water to inch water column

centimeter water to terapascal

centimeter water to yoctopascal

Inches of mercury or inHg is a non-SI unit for pressure. It is still widely used for barometric pressure in weather reports and aviation in the United States, but is considered somewhat outdated elsewhere.

It is defined as the pressure exerted by a column of mercury of 1 inch in height at 32 °F (0 °C) at the standard acceleration of gravity.

1 inHg = 3,386.389 pascals at 0 °C.

Aircraft operating at higher altitudes (above 18,000 feet) set their barometric altimeters to a standard pressure of 29.92 inHg or 1,013.2 hPa (1 hPa = 1 mbar) regardless of the actual sea level pressure, with inches of mercury used in the U.S. and Canada. The resulting altimeter readings are known as flight levels.

Piston engine aircraft with constant-speed propellers also use inHg to measure manifold pressure, which is indicative of engine power produced.

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