›› Convert inch of mercury [0 C] to newton/square millimetre


inch of mercury
newton/square millimeter

›› More information from the unit converter

How many inch of mercury in 1 newton/square millimeter? The answer is 295.29983071445.
We assume you are converting between inch of mercury [0 C] and newton/square millimetre.
You can view more details on each measurement unit:
inch of mercury or newton/square millimeter
The SI derived unit for pressure is the pascal.
1 pascal is equal to 0.00029529983071445 inch of mercury, or 1.0E-6 newton/square millimeter.
Note that rounding errors may occur, so always check the results.
Use this page to learn how to convert between inches of mercury and newtons/square millimeter.
Type in your own numbers in the form to convert the units!


›› Quick conversion chart of inch of mercury to newton/square millimeter

1 inch of mercury to newton/square millimeter = 0.00339 newton/square millimeter

10 inch of mercury to newton/square millimeter = 0.03386 newton/square millimeter

50 inch of mercury to newton/square millimeter = 0.16932 newton/square millimeter

100 inch of mercury to newton/square millimeter = 0.33864 newton/square millimeter

200 inch of mercury to newton/square millimeter = 0.67728 newton/square millimeter

500 inch of mercury to newton/square millimeter = 1.69319 newton/square millimeter

1000 inch of mercury to newton/square millimeter = 3.38639 newton/square millimeter


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›› Common pressure conversions

inch of mercury to kilogram-force/square millimeter
inch of mercury to dekabar
inch of mercury to meter of air
inch of mercury to kilopond/square millimeter
inch of mercury to foot of air
inch of mercury to femtobar
inch of mercury to hectopascal
inch of mercury to inch water
inch of mercury to technical atmosphere
inch of mercury to petabar


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widely used for barometric pressure in weather reports and aviation in the United States, but is considered somewhat outdated elsewhere.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