›› Convert to kilopascal

inch mercury

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

›› Quick conversion chart of inch mercury to kilopascal

1 inch mercury to kilopascal = 3.38639 kilopascal

5 inch mercury to kilopascal = 16.93195 kilopascal

10 inch mercury to kilopascal = 33.86389 kilopascal

15 inch mercury to kilopascal = 50.79584 kilopascal

20 inch mercury to kilopascal = 67.72778 kilopascal

25 inch mercury to kilopascal = 84.65973 kilopascal

30 inch mercury to kilopascal = 101.59167 kilopascal

40 inch mercury to kilopascal = 135.45556 kilopascal

50 inch mercury to kilopascal = 169.31945 kilopascal

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You can do the reverse unit conversion from kilopascal to inch mercury, or enter any two units below:

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›› Common pressure conversions

inch mercury to torr
inch mercury to atmosphere
inch mercury to petapascal
inch mercury to yottapascal
inch mercury to inch water
inch mercury to dekabar
inch mercury to kilopond/square centimeter
inch mercury to attopascal
inch mercury to kilopond/square meter
inch mercury to foot of water

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widely used for barometric pressure in weather reports and aviation in the United States, but is considered somewhat outdated elsewhere.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

›› Definition: Kilopascal

The SI prefix "kilo" represents a factor of 103, or in exponential notation, 1E3.

So 1 kilopascal = 103 pascals.

The definition of a pascal is as follows:

The pascal (symbol Pa) is the SI unit of pressure.It is equivalent to one newton per square metre. The unit is named after Blaise Pascal, the eminent French mathematician, physicist and philosopher.

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