How many meter of head in 1 inch Hg? 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 Hg The SI derived unit for pressure is the pascal. 1 pascal is equal to 0.00010199773339984 meter of head, or 0.00029529983071445 inch Hg. 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 Hg = 2.89516 inch Hg
5 meter of head to inch Hg = 14.4758 inch Hg
10 meter of head to inch Hg = 28.95161 inch Hg
15 meter of head to inch Hg = 43.42741 inch Hg
20 meter of head to inch Hg = 57.90321 inch Hg
25 meter of head to inch Hg = 72.37902 inch Hg
30 meter of head to inch Hg = 86.85482 inch Hg
40 meter of head to inch Hg = 115.80643 inch Hg
50 meter of head to inch Hg = 144.75804 inch Hg
You can do the reverse unit conversion from inch Hg to meter of head, or enter any two units below:
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widely used for barometric pressure in weather reports and aviation in the United States, but is considered somewhat outdated elsewhere.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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