›› Convert inch of mercury [0 C] to inch of air [15 C]

inch of mercury
inch of air [15 C]

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inch of air [15 C]

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How many inch of mercury in 1 inch of air [15 C]? The answer is 9.0122877704725E-5.
We assume you are converting between inch of mercury [0 C] and inch of air [15 C].
You can view more details on each measurement unit:
inch of mercury or inch of air [15 C]
The SI derived unit for pressure is the pascal.
1 pascal is equal to 0.00029529983071445 inch of mercury, or 3.2766356138999 inch of air [15 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 inches of air.
Type in your own numbers in the form to convert the units!

›› Quick conversion chart of inch of mercury to inch of air [15 C]

1 inch of mercury to inch of air [15 C] = 11095.96171 inch of air [15 C]

2 inch of mercury to inch of air [15 C] = 22191.92342 inch of air [15 C]

3 inch of mercury to inch of air [15 C] = 33287.88512 inch of air [15 C]

4 inch of mercury to inch of air [15 C] = 44383.84683 inch of air [15 C]

5 inch of mercury to inch of air [15 C] = 55479.80854 inch of air [15 C]

6 inch of mercury to inch of air [15 C] = 66575.77025 inch of air [15 C]

7 inch of mercury to inch of air [15 C] = 77671.73195 inch of air [15 C]

8 inch of mercury to inch of air [15 C] = 88767.69366 inch of air [15 C]

9 inch of mercury to inch of air [15 C] = 99863.65537 inch of air [15 C]

10 inch of mercury to inch of air [15 C] = 110959.61708 inch of air [15 C]

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You can do the reverse unit conversion from inch of air [15 C] to inch of mercury, or enter any two units below:

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›› Common pressure conversions

inch of mercury to dekapascal
inch of mercury to megabar
inch of mercury to nanobar
inch of mercury to millibar
inch of mercury to decitorr
inch of mercury to meter of head
inch of mercury to zeptobar
inch of mercury to millihg
inch of mercury to water column
inch of mercury to picobar

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widely used for barometric pressure in weather reports and aviation in the United States, but is considered somewhat outdated elsewhere.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

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