›› Convert inch of mercury [0 C] to water column [inch]


inch of mercury
water column [inch]

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›› More information from the unit converter

How many inch of mercury in 1 water column [inch]? The answer is 0.073555912463681.
We assume you are converting between inch of mercury [0 C] and water column [inch].
You can view more details on each measurement unit:
inch of mercury or water column [inch]
The SI derived unit for pressure is the pascal.
1 pascal is equal to 0.00029529983071445 inch of mercury, or 0.0040146307866177 water column [inch].
Note that rounding errors may occur, so always check the results.
Use this page to learn how to convert between inches of mercury and water column.
Type in your own numbers in the form to convert the units!


›› Quick conversion chart of inch of mercury to water column [inch]

1 inch of mercury to water column [inch] = 13.5951 water column [inch]

2 inch of mercury to water column [inch] = 27.1902 water column [inch]

3 inch of mercury to water column [inch] = 40.7853 water column [inch]

4 inch of mercury to water column [inch] = 54.3804 water column [inch]

5 inch of mercury to water column [inch] = 67.9755 water column [inch]

6 inch of mercury to water column [inch] = 81.5706 water column [inch]

7 inch of mercury to water column [inch] = 95.1657 water column [inch]

8 inch of mercury to water column [inch] = 108.7608 water column [inch]

9 inch of mercury to water column [inch] = 122.3559 water column [inch]

10 inch of mercury to water column [inch] = 135.951 water column [inch]


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

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›› Common pressure conversions

inch of mercury to millipascal
inch of mercury to megabar
inch of mercury to inch water column
inch of mercury to inch of air
inch of mercury to sthene/square meter
inch of mercury to kilogram/square centimeter
inch of mercury to megapascal
inch of mercury to centimeter mercury
inch of mercury to pascal
inch of mercury to foot of air


›› Definition: Inch of mercury

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widely used for barometric pressure in weather reports and aviation in the United States, but is considered somewhat outdated elsewhere.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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ConvertUnits.com provides an online conversion calculator for all types of measurement units. You can find metric conversion tables for SI units, as well as English units, currency, and other data. Type in unit symbols, abbreviations, or full names for units of length, area, mass, pressure, and other types. Examples include mm, inch, 100 kg, US fluid ounce, 6'3", 10 stone 4, cubic cm, metres squared, grams, moles, feet per second, and many more!