How many inch of mercury in 1 foot of head?
The answer is 0.88267094956417.
We assume you are converting between inch of mercury [0 °C] and foot of head.
You can view more details on each measurement unit:
inch of mercury or foot of head
The SI derived unit for pressure is the pascal.
1 pascal is equal to 0.00029529983071445 inch of mercury, or 0.00033455256555148 foot of head.
Note that rounding errors may occur, so always check the results.
Use this page to learn how to convert between inches of mercury and feet of head.
Type in your own numbers in the form to convert the units!
1 inch of mercury to foot of head = 1.13293 foot of head
5 inch of mercury to foot of head = 5.66463 foot of head
10 inch of mercury to foot of head = 11.32925 foot of head
15 inch of mercury to foot of head = 16.99388 foot of head
20 inch of mercury to foot of head = 22.6585 foot of head
25 inch of mercury to foot of head = 28.32313 foot of head
30 inch of mercury to foot of head = 33.98775 foot of head
40 inch of mercury to foot of head = 45.317 foot of head
50 inch of mercury to foot of head = 56.64625 foot of head
You can do the reverse unit conversion from foot of head to inch of mercury, or enter any two units below:
inch of mercury to kilogram-force/square millimeter
inch of mercury to foot of water
inch of mercury to gigapascal
inch of mercury to foot of air
inch of mercury to decibar
inch of mercury to poundal/square foot
inch of mercury to micrometer of mercury
inch of mercury to barye
inch of mercury to newton/square millimeter
inch of mercury to centibar
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widely used for barometric pressure in weather reports and aviation in the United States, but is considered somewhat outdated elsewhere.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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