|Did you mean to convert||inch of air [0 °C]
inch of air [15 °C]
How many inches air in 1 inch mercury?
The answer is 10516.494341434.
We assume you are converting between inch of air [0 °C] and .
You can view more details on each measurement unit:
inches air or inch mercury
The SI derived unit for pressure is the pascal.
1 pascal is equal to 3.1055186930487 inches air, or 0.00029529980164712 inch mercury.
Note that rounding errors may occur, so always check the results.
Use this page to learn how to convert between inches of air and inches mercury.
Type in your own numbers in the form to convert the units!
You can do the reverse unit conversion from inch mercury to inches air, or enter any two units below:
inches air to dekabar
inches air to yottapascal
inches air to foot water
inches air to foot of head
inches air to terabar
inches air to millimeter water
inches air to yoctopascal
inches air to inch water column
inches air to meter of air
inches air to poundal/square foot
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widely used for barometric pressure in weather reports and aviation in the United States, but is considered somewhat outdated elsewhere.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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