How many millimegabar in 1 inch mercury [0 °C]? The answer is 3.386389E-5. We assume you are converting between millimegabar and inch mercury [0 °C]. You can view more details on each measurement unit: millimegabar or inch mercury [0 °C] The SI derived unit for pressure is the pascal. 1 pascal is equal to 1.0E-8 millimegabar, or 0.00029529980164712 inch mercury [0 °C]. Note that rounding errors may occur, so always check the results. Use this page to learn how to convert between millimegabars and inches mercury. Type in your own numbers in the form to convert the units!
1 millimegabar to inch mercury [0 °C] = 29529.98016 inch mercury [0 °C]
2 millimegabar to inch mercury [0 °C] = 59059.96033 inch mercury [0 °C]
3 millimegabar to inch mercury [0 °C] = 88589.94049 inch mercury [0 °C]
4 millimegabar to inch mercury [0 °C] = 118119.92066 inch mercury [0 °C]
5 millimegabar to inch mercury [0 °C] = 147649.90082 inch mercury [0 °C]
6 millimegabar to inch mercury [0 °C] = 177179.88099 inch mercury [0 °C]
7 millimegabar to inch mercury [0 °C] = 206709.86115 inch mercury [0 °C]
8 millimegabar to inch mercury [0 °C] = 236239.84132 inch mercury [0 °C]
9 millimegabar to inch mercury [0 °C] = 265769.82148 inch mercury [0 °C]
10 millimegabar to inch mercury [0 °C] = 295299.80165 inch mercury [0 °C]
You can do the reverse unit conversion from inch mercury [0 °C] to millimegabar, or enter any two units below:
The SI prefix "milli" represents a factor of 10-3, or in exponential notation, 1E-3.
So 1 millimegabar = 10-3 megabars.
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widely used for barometric pressure in weather reports and aviation in the United States, but is considered somewhat outdated elsewhere.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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