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

inch of mercury
ton/square meter

›› More information from the unit converter

How many inch of mercury in 1 ton/square meter? 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 or ton/square meter
The SI derived unit for pressure is the pascal.
1 pascal is equal to 0.00029529983071445 inch of mercury, or 0.00010197162129779 ton/square meter.
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!

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

1 inch of mercury to ton/square meter = 0.34532 ton/square meter

5 inch of mercury to ton/square meter = 1.72658 ton/square meter

10 inch of mercury to ton/square meter = 3.45316 ton/square meter

20 inch of mercury to ton/square meter = 6.90631 ton/square meter

30 inch of mercury to ton/square meter = 10.35947 ton/square meter

40 inch of mercury to ton/square meter = 13.81262 ton/square meter

50 inch of mercury to ton/square meter = 17.26578 ton/square meter

75 inch of mercury to ton/square meter = 25.89867 ton/square meter

100 inch of mercury to ton/square meter = 34.53155 ton/square meter

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

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›› Common pressure conversions

inch of mercury to yoctobar
inch of mercury to decipascal
inch of mercury to attopascal
inch of mercury to micrometer of mercury
inch of mercury to zeptobar
inch of mercury to kilopond/square centimeter
inch of mercury to petabar
inch of mercury to kilogram-force/square millimeter
inch of mercury to inch water column
inch of mercury to terabar

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widely used for barometric pressure in weather reports and aviation in the United States, but is considered somewhat outdated elsewhere.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

›› 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!