How many inch of mercury [0 °C] in 1 ton/square metre? The answer is 2.8959020848759. We assume you are converting between inch of mercury [0 °C] and ton/square metre. You can view more details on each measurement unit: inch of mercury [0 °C] or ton/square metre The SI derived unit for pressure is the pascal. 1 pascal is equal to 0.00029529983071445 inch of mercury [0 °C], or 0.00010197162129779 ton/square metre. Note that rounding errors may occur, so always check the results. Use this page to learn how to convert between inches of mercury and tons/square meter. Type in your own numbers in the form to convert the units!
1 inch of mercury [0 °C] to ton/square metre = 0.34532 ton/square metre
5 inch of mercury [0 °C] to ton/square metre = 1.72658 ton/square metre
10 inch of mercury [0 °C] to ton/square metre = 3.45316 ton/square metre
20 inch of mercury [0 °C] to ton/square metre = 6.90631 ton/square metre
30 inch of mercury [0 °C] to ton/square metre = 10.35947 ton/square metre
40 inch of mercury [0 °C] to ton/square metre = 13.81262 ton/square metre
50 inch of mercury [0 °C] to ton/square metre = 17.26578 ton/square metre
75 inch of mercury [0 °C] to ton/square metre = 25.89867 ton/square metre
100 inch of mercury [0 °C] to ton/square metre = 34.53155 ton/square metre
You can do the reverse unit conversion from ton/square metre to inch of mercury [0 °C], 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widely used for barometric pressure in weather reports and aviation in the United States, but is considered somewhat outdated elsewhere.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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