## ››Convert centihg to

 centihg inch mercury

How many centihg in 1 inch mercury? The answer is 2.5400002205181.
We assume you are converting between centihg and .
You can view more details on each measurement unit:
centihg or inch mercury
The SI derived unit for pressure is the pascal.
1 pascal is equal to 0.00075006156130264 centihg, or 0.00029529980164712 inch mercury.
Note that rounding errors may occur, so always check the results.
Use this page to learn how to convert between centihg and inches mercury.
Type in your own numbers in the form to convert the units!

## ››Quick conversion chart of centihg to inch mercury

1 centihg to inch mercury = 0.3937 inch mercury

5 centihg to inch mercury = 1.9685 inch mercury

10 centihg to inch mercury = 3.93701 inch mercury

20 centihg to inch mercury = 7.87402 inch mercury

30 centihg to inch mercury = 11.81102 inch mercury

40 centihg to inch mercury = 15.74803 inch mercury

50 centihg to inch mercury = 19.68504 inch mercury

75 centihg to inch mercury = 29.52756 inch mercury

100 centihg to inch mercury = 39.37008 inch mercury

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## ››Definition: Centihg

The SI prefix "centi" represents a factor of 10-2, or in exponential notation, 1E-2.

So 1 centihg = 10-2 hg.

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widely used for barometric pressure in weather reports and aviation in the United States, but is considered somewhat outdated elsewhere.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