›› Convert ton/square metre to


ton/square meter
inch mercury


›› More information from the unit converter

How many ton/square meter in 1 inch mercury? The answer is 0.34531557667501.
We assume you are converting between ton/square metre and .
You can view more details on each measurement unit:
ton/square meter or inch mercury
The SI derived unit for pressure is the pascal.
1 pascal is equal to 0.00010197162129779 ton/square meter, or 0.00029529980164712 inch 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 mercury.
Type in your own numbers in the form to convert the units!


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

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

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

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

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

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

25 ton/square meter to inch mercury = 72.39754 inch mercury

30 ton/square meter to inch mercury = 86.87705 inch mercury

40 ton/square meter to inch mercury = 115.83607 inch mercury

50 ton/square meter to inch mercury = 144.79509 inch mercury



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›› Common pressure conversions

ton/square meter to inch of mercury
ton/square meter to micrometer of mercury
ton/square meter to gram/square centimeter
ton/square meter to megapascal
ton/square meter to hectopascal
ton/square meter to kilonewton/square meter
ton/square meter to kilopond/square centimeter
ton/square meter to petabar
ton/square meter to picopascal
ton/square meter to ounce/square inch


›› Definition: Inch 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widely used for barometric pressure in weather reports and aviation in the United States, but is considered somewhat outdated elsewhere.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.


›› Metric conversions and more

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!