›› Convert to kilonewton/square metre


inch mercury
kilonewton/square meter


›› More information from the unit converter

How many inch mercury in 1 kilonewton/square meter? The answer is 0.29529980164712.
We assume you are converting between and kilonewton/square metre.
You can view more details on each measurement unit:
inch mercury or kilonewton/square meter
The SI derived unit for pressure is the pascal.
1 pascal is equal to 0.00029529980164712 inch mercury, or 0.001 kilonewton/square meter.
Note that rounding errors may occur, so always check the results.
Use this page to learn how to convert between inches mercury and kilonewtons/square meter.
Type in your own numbers in the form to convert the units!


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

1 inch mercury to kilonewton/square meter = 3.38639 kilonewton/square meter

5 inch mercury to kilonewton/square meter = 16.93195 kilonewton/square meter

10 inch mercury to kilonewton/square meter = 33.86389 kilonewton/square meter

15 inch mercury to kilonewton/square meter = 50.79584 kilonewton/square meter

20 inch mercury to kilonewton/square meter = 67.72778 kilonewton/square meter

25 inch mercury to kilonewton/square meter = 84.65973 kilonewton/square meter

30 inch mercury to kilonewton/square meter = 101.59167 kilonewton/square meter

40 inch mercury to kilonewton/square meter = 135.45556 kilonewton/square meter

50 inch mercury to kilonewton/square meter = 169.31945 kilonewton/square meter



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›› Common pressure conversions

inch mercury to attopascal
inch mercury to pound/square inch
inch mercury to dyne/square centimeter
inch mercury to zeptobar
inch mercury to yoctobar
inch mercury to microbar
inch mercury to millimeter of mercury
inch mercury to foot of water
inch mercury to water column
inch mercury to kilopond/square meter


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widely used for barometric pressure in weather reports and aviation in the United States, but is considered somewhat outdated elsewhere.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


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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!