How many inch mercury in 1 millimicrometer of mercury [0 °C]? The answer is 3.937007532212E-8. We assume you are converting between inch mercury [0 °C] and millimicrometer of mercury [0 °C]. You can view more details on each measurement unit: inch mercury or millimicrometer of mercury [0 °C] The SI derived unit for pressure is the pascal. 1 pascal is equal to 0.00029529980164712 inch mercury, or 7500.6156130264 millimicrometer of mercury [0 °C]. Note that rounding errors may occur, so always check the results. Use this page to learn how to convert between inches mercury and millimicrometers of mercury. Type in your own numbers in the form to convert the units!
1 inch mercury to millimicrometer of mercury [0 °C] = 25400002.20518 millimicrometer of mercury [0 °C]
2 inch mercury to millimicrometer of mercury [0 °C] = 50800004.41036 millimicrometer of mercury [0 °C]
3 inch mercury to millimicrometer of mercury [0 °C] = 76200006.61554 millimicrometer of mercury [0 °C]
4 inch mercury to millimicrometer of mercury [0 °C] = 101600008.82072 millimicrometer of mercury [0 °C]
5 inch mercury to millimicrometer of mercury [0 °C] = 127000011.0259 millimicrometer of mercury [0 °C]
6 inch mercury to millimicrometer of mercury [0 °C] = 152400013.23109 millimicrometer of mercury [0 °C]
7 inch mercury to millimicrometer of mercury [0 °C] = 177800015.43627 millimicrometer of mercury [0 °C]
8 inch mercury to millimicrometer of mercury [0 °C] = 203200017.64145 millimicrometer of mercury [0 °C]
9 inch mercury to millimicrometer of mercury [0 °C] = 228600019.84663 millimicrometer of mercury [0 °C]
10 inch mercury to millimicrometer of mercury [0 °C] = 254000022.05181 millimicrometer of mercury [0 °C]
You can do the reverse unit conversion from millimicrometer of mercury [0 °C] 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widely used for barometric pressure in weather reports and aviation in the United States, but is considered somewhat outdated elsewhere.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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