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

inch of air

Did you mean to convert inHg to inch of air [0 C]
inch of air [15 C]

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How many inHg in 1 inch of air? The answer is 9.50887307088E-5.
We assume you are converting between inch of mercury [0 C] and inch of air [0 C].
You can view more details on each measurement unit:
inHg or inch of air
The SI derived unit for pressure is the pascal.
1 pascal is equal to 0.00029529983071445 inHg, or 3.1055186930487 inch of air.
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 inHg to inch of air

1 inHg to inch of air = 10516.49331 inch of air

2 inHg to inch of air = 21032.98661 inch of air

3 inHg to inch of air = 31549.47992 inch of air

4 inHg to inch of air = 42065.97323 inch of air

5 inHg to inch of air = 52582.46653 inch of air

6 inHg to inch of air = 63098.95984 inch of air

7 inHg to inch of air = 73615.45314 inch of air

8 inHg to inch of air = 84131.94645 inch of air

9 inHg to inch of air = 94648.43976 inch of air

10 inHg to inch of air = 105164.93306 inch of air

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

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›› Common pressure conversions

inHg to kilopascal
inHg to microbar
inHg to millimeter water
inHg to foot water
inHg to decibar
inHg to ton/square meter
inHg to yoctopascal
inHg to newton/square millimeter
inHg to kilopond/square millimeter
inHg to centimeter 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widely used for barometric pressure in weather reports and aviation in the United States, but is considered somewhat outdated elsewhere.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.

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