How many inch mercury in 1 milliatmosphere [technical]? The answer is 0.028959017998228. We assume you are converting between inch mercury [0 °C] and milliatmosphere [technical]. You can view more details on each measurement unit: inch mercury or milliatmosphere [technical] The SI derived unit for pressure is the pascal. 1 pascal is equal to 0.00029529980164712 inch mercury, or 0.010197162129779 milliatmosphere [technical]. Note that rounding errors may occur, so always check the results. Use this page to learn how to convert between inches mercury and milliatmospheres. Type in your own numbers in the form to convert the units!
1 inch mercury to milliatmosphere [technical] = 34.53156 milliatmosphere [technical]
2 inch mercury to milliatmosphere [technical] = 69.06312 milliatmosphere [technical]
3 inch mercury to milliatmosphere [technical] = 103.59467 milliatmosphere [technical]
4 inch mercury to milliatmosphere [technical] = 138.12623 milliatmosphere [technical]
5 inch mercury to milliatmosphere [technical] = 172.65779 milliatmosphere [technical]
6 inch mercury to milliatmosphere [technical] = 207.18935 milliatmosphere [technical]
7 inch mercury to milliatmosphere [technical] = 241.7209 milliatmosphere [technical]
8 inch mercury to milliatmosphere [technical] = 276.25246 milliatmosphere [technical]
9 inch mercury to milliatmosphere [technical] = 310.78402 milliatmosphere [technical]
10 inch mercury to milliatmosphere [technical] = 345.31558 milliatmosphere [technical]
You can do the reverse unit conversion from milliatmosphere [technical] to inch 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widely used for barometric pressure in weather reports and aviation in the United States, but is considered somewhat outdated elsewhere.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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