How many meter of head in 1 inch of mercury?
The answer is 0.34540396841091.
We assume you are converting between meter of head and inch of mercury [0 °C].
You can view more details on each measurement unit:
meter of head or inch of mercury
The SI derived unit for pressure is the pascal.
1 pascal is equal to 0.00010199773339984 meter of head, or 0.00029529983071445 inch of mercury.
Note that rounding errors may occur, so always check the results.
Use this page to learn how to convert between meters of head and inches of mercury.
Type in your own numbers in the form to convert the units!
1 meter of head to inch of mercury = 2.89516 inch of mercury
5 meter of head to inch of mercury = 14.4758 inch of mercury
10 meter of head to inch of mercury = 28.95161 inch of mercury
15 meter of head to inch of mercury = 43.42741 inch of mercury
20 meter of head to inch of mercury = 57.90321 inch of mercury
25 meter of head to inch of mercury = 72.37902 inch of mercury
30 meter of head to inch of mercury = 86.85482 inch of mercury
40 meter of head to inch of mercury = 115.80643 inch of mercury
50 meter of head to inch of mercury = 144.75804 inch of mercury
You can do the reverse unit conversion from inch of mercury to meter of head, or enter any two units below:
meter of head to foot water
meter of head to foot of head
meter of head to kilobar
meter of head to terapascal
meter of head to kilogram-force/square millimeter
meter of head to decitorr
meter of head to kip/square foot
meter of head to inch of water
meter of head to pound/square inch
meter of head to zeptopascal
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widely used for barometric pressure in weather reports and aviation in the United States, but is considered somewhat outdated elsewhere.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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