How many inch of mercury in 1 millimicron mercury [0 °C]? The answer is 3.9370079197446E-8. We assume you are converting between inch of mercury [0 °C] and millimicron mercury [0 °C]. You can view more details on each measurement unit: inch of mercury or millimicron mercury [0 °C] The SI derived unit for pressure is the pascal. 1 pascal is equal to 0.00029529983071445 inch of mercury, or 7500.6156130264 millimicron mercury [0 °C]. Note that rounding errors may occur, so always check the results. Use this page to learn how to convert between inches of mercury and millimicrons mercury. Type in your own numbers in the form to convert the units!
1 inch of mercury to millimicron mercury [0 °C] = 25399999.70498 millimicron mercury [0 °C]
2 inch of mercury to millimicron mercury [0 °C] = 50799999.40995 millimicron mercury [0 °C]
3 inch of mercury to millimicron mercury [0 °C] = 76199999.11493 millimicron mercury [0 °C]
4 inch of mercury to millimicron mercury [0 °C] = 101599998.8199 millimicron mercury [0 °C]
5 inch of mercury to millimicron mercury [0 °C] = 126999998.52488 millimicron mercury [0 °C]
6 inch of mercury to millimicron mercury [0 °C] = 152399998.22985 millimicron mercury [0 °C]
7 inch of mercury to millimicron mercury [0 °C] = 177799997.93483 millimicron mercury [0 °C]
8 inch of mercury to millimicron mercury [0 °C] = 203199997.63981 millimicron mercury [0 °C]
9 inch of mercury to millimicron mercury [0 °C] = 228599997.34478 millimicron mercury [0 °C]
10 inch of mercury to millimicron mercury [0 °C] = 253999997.04976 millimicron mercury [0 °C]
You can do the reverse unit conversion from millimicron mercury [0 °C] 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widely used for barometric pressure in weather reports and aviation in the United States, but is considered somewhat outdated elsewhere.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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