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


sthene/square meter
inch of mercury


›› More information from the unit converter

How many sthene/square meter in 1 inch of mercury? The answer is 3.3863886666667.
We assume you are converting between sthene/square metre and inch of mercury [0 °C].
You can view more details on each measurement unit:
sthene/square meter or inch of mercury
The SI derived unit for pressure is the pascal.
1 pascal is equal to 0.001 sthene/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 sthenes/square meter and inches of mercury.
Type in your own numbers in the form to convert the units!


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

1 sthene/square meter to inch of mercury = 0.2953 inch of mercury

5 sthene/square meter to inch of mercury = 1.4765 inch of mercury

10 sthene/square meter to inch of mercury = 2.953 inch of mercury

20 sthene/square meter to inch of mercury = 5.906 inch of mercury

30 sthene/square meter to inch of mercury = 8.85899 inch of mercury

40 sthene/square meter to inch of mercury = 11.81199 inch of mercury

50 sthene/square meter to inch of mercury = 14.76499 inch of mercury

75 sthene/square meter to inch of mercury = 22.14749 inch of mercury

100 sthene/square meter to inch of mercury = 29.52998 inch of mercury



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›› Common pressure conversions

sthene/square meter to ton/square foot
sthene/square meter to foot of mercury
sthene/square meter to kilopond/square meter
sthene/square meter to gram/square centimeter
sthene/square meter to kilogram-force/square meter
sthene/square meter to inch water column
sthene/square meter to newton/square millimeter
sthene/square meter to millimeter of mercury
sthene/square meter to kilogram-force/square millimeter
sthene/square meter to foot of air


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widely used for barometric pressure in weather reports and aviation in the United States, but is considered somewhat outdated elsewhere.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