How many inch of mercury in 1 gram/square meters? The answer is 2.8959020848759E-6. We assume you are converting between inch of mercury [0 °C] and gram-force/square metre. You can view more details on each measurement unit: inch of mercury or gram/square meters The SI derived unit for pressure is the pascal. 1 pascal is equal to 0.00029529983071445 inch of mercury, or 101.97162129779 gram/square meters. Note that rounding errors may occur, so always check the results. Use this page to learn how to convert between inches of mercury and grams-force/square meter. Type in your own numbers in the form to convert the units!
1 inch of mercury to gram/square meters = 345315.54268 gram/square meters
2 inch of mercury to gram/square meters = 690631.08537 gram/square meters
3 inch of mercury to gram/square meters = 1035946.62805 gram/square meters
4 inch of mercury to gram/square meters = 1381262.17074 gram/square meters
5 inch of mercury to gram/square meters = 1726577.71342 gram/square meters
6 inch of mercury to gram/square meters = 2071893.25611 gram/square meters
7 inch of mercury to gram/square meters = 2417208.79879 gram/square meters
8 inch of mercury to gram/square meters = 2762524.34148 gram/square meters
9 inch of mercury to gram/square meters = 3107839.88416 gram/square meters
10 inch of mercury to gram/square meters = 3453155.42684 gram/square meters
You can do the reverse unit conversion from gram/square meters to inch of mercury, 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widely used for barometric pressure in weather reports and aviation in the United States, but is considered somewhat outdated elsewhere.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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