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foot of air [0 °C] foot of air [15 °C] |
to |
inch mercury |

How many feet of air in 1 inch mercury?
The answer is 876.37452845287.

We assume you are converting between **foot of air [0 °C]** and .

You can view more details on each measurement unit:

feet of air or
inch mercury

The SI derived unit for **pressure** is the pascal.

1 pascal is equal to 0.25879322442072 feet of 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 feet of air and inches mercury.

Type in your own numbers in the form to convert the units!

1 feet of air to inch mercury = 0.00114 inch mercury

10 feet of air to inch mercury = 0.01141 inch mercury

50 feet of air to inch mercury = 0.05705 inch mercury

100 feet of air to inch mercury = 0.11411 inch mercury

200 feet of air to inch mercury = 0.22821 inch mercury

500 feet of air to inch mercury = 0.57053 inch mercury

1000 feet of air to inch mercury = 1.14106 inch mercury

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

feet of air to foot mercury

feet of air to micropascal

feet of air to inch water

feet of air to barye

feet of air to centibar

feet of air to kilopond/square centimeter

feet of air to microbar

feet of air to inch of mercury

feet of air to micrometer of mercury

feet of air to meter of air

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widely used for barometric pressure in weather reports and aviation in the United States, but is considered somewhat outdated elsewhere.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