| Did you mean to convert | water column [centimeter] water column [inch] water column [millimeter] |
to | inch Hg |
How many water column [inch] in 1 inch Hg? The answer is 13.595100196653. We assume you are converting between water column [inch] and inch of mercury [0 °C]. You can view more details on each measurement unit: water column [inch] or inch Hg The SI derived unit for pressure is the pascal. 1 pascal is equal to 0.0040146307866177 water column [inch], 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 water column and inches of mercury. Type in your own numbers in the form to convert the units!
1 water column [inch] to inch Hg = 0.07356 inch Hg
10 water column [inch] to inch Hg = 0.73556 inch Hg
20 water column [inch] to inch Hg = 1.47112 inch Hg
30 water column [inch] to inch Hg = 2.20668 inch Hg
40 water column [inch] to inch Hg = 2.94224 inch Hg
50 water column [inch] to inch Hg = 3.6778 inch Hg
100 water column [inch] to inch Hg = 7.35559 inch Hg
200 water column [inch] to inch Hg = 14.71118 inch Hg
You can do the reverse unit conversion from inch Hg to water column [inch], 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widely used for barometric pressure in weather reports and aviation in the United States, but is considered somewhat outdated elsewhere.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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