How many inch of mercury in 1 newton/square millimetre? 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 millimetre 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 millimetre. 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!
1 inch of mercury to newton/square millimetre = 0.00339 newton/square millimetre
10 inch of mercury to newton/square millimetre = 0.03386 newton/square millimetre
50 inch of mercury to newton/square millimetre = 0.16932 newton/square millimetre
100 inch of mercury to newton/square millimetre = 0.33864 newton/square millimetre
200 inch of mercury to newton/square millimetre = 0.67728 newton/square millimetre
500 inch of mercury to newton/square millimetre = 1.69319 newton/square millimetre
1000 inch of mercury to newton/square millimetre = 3.38639 newton/square millimetre
You can do the reverse unit conversion from newton/square millimetre to inch of mercury, or enter any two units below:
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widely used for barometric pressure in weather reports and aviation in the United States, but is considered somewhat outdated elsewhere.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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