How many inch mercury in 1 hectopascal?
The answer is 0.029529980164712.

We assume you are converting between and **hectopascal**.

You can view more details on each measurement unit:

inch mercury or
hectopascal

The SI derived unit for **pressure** is the pascal.

1 pascal is equal to 0.00029529980164712 inch mercury, or 0.01 hectopascal.

Note that rounding errors may occur, so always check the results.

Use this page to learn how to convert between inches mercury and hectopascals.

Type in your own numbers in the form to convert the units!

1 inch mercury to hectopascal = 33.86389 hectopascal

2 inch mercury to hectopascal = 67.72778 hectopascal

3 inch mercury to hectopascal = 101.59167 hectopascal

4 inch mercury to hectopascal = 135.45556 hectopascal

5 inch mercury to hectopascal = 169.31945 hectopascal

6 inch mercury to hectopascal = 203.18334 hectopascal

7 inch mercury to hectopascal = 237.04723 hectopascal

8 inch mercury to hectopascal = 270.91112 hectopascal

9 inch mercury to hectopascal = 304.77501 hectopascal

10 inch mercury to hectopascal = 338.6389 hectopascal

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

inch mercury to kip/square inch

inch mercury to zettapascal

inch mercury to micropascal

inch mercury to yottapascal

inch mercury to nanobar

inch mercury to attopascal

inch mercury to decitorr

inch mercury to megapascal

inch mercury to kilonewton/square meter

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widely used for barometric pressure in weather reports and aviation in the United States, but is considered somewhat outdated elsewhere.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

The SI prefix "hecto" represents a factor of
10^{2}, or in exponential notation, 1E2.

So 1 hectopascal = 10^{2} 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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