›› Convert micrometer of mercury [0 C] to


micrometer of mercury
inch mercury

›› More information from the unit converter

How many micrometer of mercury in 1 inch mercury? The answer is 25400.002205181.
We assume you are converting between micrometer of mercury [0 C] and .
You can view more details on each measurement unit:
micrometer of mercury or inch mercury
The SI derived unit for pressure is the pascal.
1 pascal is equal to 7.5006156130264 micrometer of mercury, 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 micrometers of mercury and inches mercury.
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›› Common pressure conversions

micrometer of mercury to ton/square meter
micrometer of mercury to femtopascal
micrometer of mercury to megapascal
micrometer of mercury to centibar
micrometer of mercury to inch water column
micrometer of mercury to meter of air
micrometer of mercury to millimeter water
micrometer of mercury to newton/square millimeter
micrometer of mercury to kilogram-force/square millimeter
micrometer of mercury to dekabar


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widely used for barometric pressure in weather reports and aviation in the United States, but is considered somewhat outdated elsewhere.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