›› Convert inch of mercury [0 C] to micrometer of water [4 C]


inch of mercury
micrometer of water

›› More information from the unit converter

How many inch of mercury in 1 micrometer of water? The answer is 2.8959020848759E-6.
We assume you are converting between inch of mercury [0 C] and micrometer of water [4 C].
You can view more details on each measurement unit:
inch of mercury or micrometer of water
The SI derived unit for pressure is the pascal.
1 pascal is equal to 0.00029529983071445 inch of mercury, or 101.97162129779 micrometer 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 micrometers of water.
Type in your own numbers in the form to convert the units!


›› Quick conversion chart of inch of mercury to micrometer of water

1 inch of mercury to micrometer of water = 345315.54268 micrometer of water

2 inch of mercury to micrometer of water = 690631.08537 micrometer of water

3 inch of mercury to micrometer of water = 1035946.62805 micrometer of water

4 inch of mercury to micrometer of water = 1381262.17074 micrometer of water

5 inch of mercury to micrometer of water = 1726577.71342 micrometer of water

6 inch of mercury to micrometer of water = 2071893.25611 micrometer of water

7 inch of mercury to micrometer of water = 2417208.79879 micrometer of water

8 inch of mercury to micrometer of water = 2762524.34148 micrometer of water

9 inch of mercury to micrometer of water = 3107839.88416 micrometer of water

10 inch of mercury to micrometer of water = 3453155.42684 micrometer of water


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

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›› Common pressure conversions

inch of mercury to terapascal
inch of mercury to centimeter water
inch of mercury to kilonewton/square meter
inch of mercury to dekapascal
inch of mercury to barye
inch of mercury to gram/square centimeter
inch of mercury to millimeter water
inch of mercury to millipascal
inch of mercury to centimeter of mercury
inch of mercury to foot mercury


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widely used for barometric pressure in weather reports and aviation in the United States, but is considered somewhat outdated elsewhere.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