How many inch of mercury in 1 centimeter of water?
The answer is 0.028959020848759.

We assume you are converting between **inch of mercury [0 °C]** and **centimeter of water [4 °C]**.

You can view more details on each measurement unit:

inch of mercury or
centimeter of water

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

1 pascal is equal to 0.00029529983071445 inch of mercury, or 0.010197162129779 centimeter of water.

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

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

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

1 inch of mercury to centimeter of water = 34.53155 centimeter of water

2 inch of mercury to centimeter of water = 69.06311 centimeter of water

3 inch of mercury to centimeter of water = 103.59466 centimeter of water

4 inch of mercury to centimeter of water = 138.12622 centimeter of water

5 inch of mercury to centimeter of water = 172.65777 centimeter of water

6 inch of mercury to centimeter of water = 207.18933 centimeter of water

7 inch of mercury to centimeter of water = 241.72088 centimeter of water

8 inch of mercury to centimeter of water = 276.25243 centimeter of water

9 inch of mercury to centimeter of water = 310.78399 centimeter of water

10 inch of mercury to centimeter of water = 345.31554 centimeter of water

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

inch of mercury to inch water

inch of mercury to millihg

inch of mercury to inch of air

inch of mercury to ton/square inch

inch of mercury to technical atmosphere

inch of mercury to centipascal

inch of mercury to terabar

inch of mercury to centibar

inch of mercury to yoctobar

inch of mercury to nanopascal

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widely used for barometric pressure in weather reports and aviation in the United States, but is considered somewhat outdated elsewhere.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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