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

inch of mercury
sthene/square meter

›› More information from the unit converter

How many inch of mercury in 1 sthene/square meter? The answer is 0.29529983071445.
We assume you are converting between inch of mercury [0 °C] and sthene/square metre.
You can view more details on each measurement unit:
inch of mercury or sthene/square meter
The SI derived unit for pressure is the pascal.
1 pascal is equal to 0.00029529983071445 inch of mercury, or 0.001 sthene/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 sthenes/square meter.
Type in your own numbers in the form to convert the units!

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

1 inch of mercury to sthene/square meter = 3.38639 sthene/square meter

5 inch of mercury to sthene/square meter = 16.93194 sthene/square meter

10 inch of mercury to sthene/square meter = 33.86389 sthene/square meter

15 inch of mercury to sthene/square meter = 50.79583 sthene/square meter

20 inch of mercury to sthene/square meter = 67.72777 sthene/square meter

25 inch of mercury to sthene/square meter = 84.65972 sthene/square meter

30 inch of mercury to sthene/square meter = 101.59166 sthene/square meter

40 inch of mercury to sthene/square meter = 135.45555 sthene/square meter

50 inch of mercury to sthene/square meter = 169.31943 sthene/square meter

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

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›› Common pressure conversions

inch of mercury to pound/square inch
inch of mercury to millimeter water
inch of mercury to attopascal
inch of mercury to kilopond/square millimeter
inch of mercury to megabar
inch of mercury to femtobar
inch of mercury to exapascal
inch of mercury to foot mercury
inch of mercury to millitorr
inch of mercury to foot of mercury

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widely used for barometric pressure in weather reports and aviation in the United States, but is considered somewhat outdated elsewhere.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