›› Convert ton/square metre to inch of mercury [0 °C]

ton/square meter
inch of mercury

›› More information from the unit converter

How many ton/square meter in 1 inch of mercury? The answer is 0.34531554268447.
We assume you are converting between ton/square metre and inch of mercury [0 °C].
You can view more details on each measurement unit:
ton/square meter or inch of mercury
The SI derived unit for pressure is the pascal.
1 pascal is equal to 0.00010197162129779 ton/square meter, 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 tons/square meter and inches of mercury.
Type in your own numbers in the form to convert the units!

›› Quick conversion chart of ton/square meter to inch of mercury

1 ton/square meter to inch of mercury = 2.8959 inch of mercury

5 ton/square meter to inch of mercury = 14.47951 inch of mercury

10 ton/square meter to inch of mercury = 28.95902 inch of mercury

15 ton/square meter to inch of mercury = 43.43853 inch of mercury

20 ton/square meter to inch of mercury = 57.91804 inch of mercury

25 ton/square meter to inch of mercury = 72.39755 inch of mercury

30 ton/square meter to inch of mercury = 86.87706 inch of mercury

40 ton/square meter to inch of mercury = 115.83608 inch of mercury

50 ton/square meter to inch of mercury = 144.7951 inch of mercury

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You can do the reverse unit conversion from inch of mercury to ton/square meter, or enter any two units below:

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›› Common pressure conversions

ton/square meter to kilonewton/square meter
ton/square meter to femtopascal
ton/square meter to bar
ton/square meter to inch of air
ton/square meter to kilogram-force/square millimeter
ton/square meter to dekapascal
ton/square meter to kilogram-force/square meter
ton/square meter to millimeter of water
ton/square meter to decipascal
ton/square meter to barye

›› Definition: Inch of mercury

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widely used for barometric pressure in weather reports and aviation in the United States, but is considered somewhat outdated elsewhere.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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ConvertUnits.com provides an online conversion calculator for all types of measurement units. You can find metric conversion tables for SI units, as well as English units, currency, and other data. Type in unit symbols, abbreviations, or full names for units of length, area, mass, pressure, and other types. Examples include mm, inch, 100 kg, US fluid ounce, 6'3", 10 stone 4, cubic cm, metres squared, grams, moles, feet per second, and many more!