How many inch mercury in 1 millibars? The answer is 0.029529980164712. We assume you are converting between inch mercury [0 °C] and millibar. You can view more details on each measurement unit: inch mercury or millibars The SI derived unit for pressure is the pascal. 1 pascal is equal to 0.00029529980164712 inch mercury, or 0.01 millibars. Note that rounding errors may occur, so always check the results. Use this page to learn how to convert between inches mercury and millibars. Type in your own numbers in the form to convert the units!
1 inch mercury to millibars = 33.86389 millibars
2 inch mercury to millibars = 67.72778 millibars
3 inch mercury to millibars = 101.59167 millibars
4 inch mercury to millibars = 135.45556 millibars
5 inch mercury to millibars = 169.31945 millibars
6 inch mercury to millibars = 203.18334 millibars
7 inch mercury to millibars = 237.04723 millibars
8 inch mercury to millibars = 270.91112 millibars
9 inch mercury to millibars = 304.77501 millibars
10 inch mercury to millibars = 338.6389 millibars
You can do the reverse unit conversion from millibars 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widely used for barometric pressure in weather reports and aviation in the United States, but is considered somewhat outdated elsewhere.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.
A millibar (mb) is 1/1000th of a bar, a unit for measurement of pressure. It is not an SI unit of measure, however it is one of the units used in meteorology when describing atmospheric pressure. The SI unit is the pascal (Pa), with 1 millibar = 100 pascals (a hectopascal)
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