›› Convert inch of mercury [0 C] to millibar

inch of mercury

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How many inch of mercury in 1 millibar? The answer is 0.029529983071445.
We assume you are converting between inch of mercury [0 C] and millibar.
You can view more details on each measurement unit:
inch of mercury or millibar
The SI derived unit for pressure is the pascal.
1 pascal is equal to 0.00029529983071445 inch of mercury, or 0.01 millibar.
Note that rounding errors may occur, so always check the results.
Use this page to learn how to convert between inches of mercury and millibars.
Type in your own numbers in the form to convert the units!

›› Quick conversion chart of inch of mercury to millibar

1 inch of mercury to millibar = 33.86389 millibar

2 inch of mercury to millibar = 67.72777 millibar

3 inch of mercury to millibar = 101.59166 millibar

4 inch of mercury to millibar = 135.45555 millibar

5 inch of mercury to millibar = 169.31943 millibar

6 inch of mercury to millibar = 203.18332 millibar

7 inch of mercury to millibar = 237.04721 millibar

8 inch of mercury to millibar = 270.91109 millibar

9 inch of mercury to millibar = 304.77498 millibar

10 inch of mercury to millibar = 338.63887 millibar

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You can do the reverse unit conversion from millibar to inch of mercury, or enter any two units below:

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›› Common pressure conversions

inch of mercury to kilogram-force/square meter
inch of mercury to decitorr
inch of mercury to millitorr
inch of mercury to meganewton/square meter
inch of mercury to yottapascal
inch of mercury to newton/square meter
inch of mercury to kilogram-force/square millimeter
inch of mercury to terabar
inch of mercury to yoctobar
inch of mercury to centimeter of water

›› Definition: Inch of mercury

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widely used for barometric pressure in weather reports and aviation in the United States, but is considered somewhat outdated elsewhere.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.

›› Definition: Millibar

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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