How many inch of mercury [0 °C] in 1 millinewton/square millimetre? The answer is 0.29529983071445. We assume you are converting between inch of mercury [0 °C] and millinewton/square millimetre. You can view more details on each measurement unit: inch of mercury [0 °C] or millinewton/square millimetre The SI derived unit for pressure is the pascal. 1 pascal is equal to 0.00029529983071445 inch of mercury [0 °C], or 0.001 millinewton/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 millinewtons/square millimeter. Type in your own numbers in the form to convert the units!
1 inch of mercury [0 °C] to millinewton/square millimetre = 3.38639 millinewton/square millimetre
5 inch of mercury [0 °C] to millinewton/square millimetre = 16.93194 millinewton/square millimetre
10 inch of mercury [0 °C] to millinewton/square millimetre = 33.86389 millinewton/square millimetre
15 inch of mercury [0 °C] to millinewton/square millimetre = 50.79583 millinewton/square millimetre
20 inch of mercury [0 °C] to millinewton/square millimetre = 67.72777 millinewton/square millimetre
25 inch of mercury [0 °C] to millinewton/square millimetre = 84.65972 millinewton/square millimetre
30 inch of mercury [0 °C] to millinewton/square millimetre = 101.59166 millinewton/square millimetre
40 inch of mercury [0 °C] to millinewton/square millimetre = 135.45555 millinewton/square millimetre
50 inch of mercury [0 °C] to millinewton/square millimetre = 169.31943 millinewton/square millimetre
You can do the reverse unit conversion from millinewton/square millimetre to inch of mercury [0 °C], 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widely used for barometric pressure in weather reports and aviation in the United States, but is considered somewhat outdated elsewhere.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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