›› Convert to pascal

inch mercury

›› More information from the unit converter

How many inch mercury in 1 pascal? The answer is 0.00029529980164712.
We assume you are converting between and pascal.
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inch mercury or pascal
The SI derived unit for pressure is the pascal.
1 inch mercury is equal to 3386.389 pascal.
Note that rounding errors may occur, so always check the results.
Use this page to learn how to convert between inches mercury and pascals.
Type in your own numbers in the form to convert the units!

›› Quick conversion chart of inch mercury to pascal

1 inch mercury to pascal = 3386.389 pascal

2 inch mercury to pascal = 6772.778 pascal

3 inch mercury to pascal = 10159.167 pascal

4 inch mercury to pascal = 13545.556 pascal

5 inch mercury to pascal = 16931.945 pascal

6 inch mercury to pascal = 20318.334 pascal

7 inch mercury to pascal = 23704.723 pascal

8 inch mercury to pascal = 27091.112 pascal

9 inch mercury to pascal = 30477.501 pascal

10 inch mercury to pascal = 33863.89 pascal

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›› Common pressure conversions

inch mercury to attobar
inch mercury to ton/square inch
inch mercury to centimeter water
inch mercury to pound/square foot
inch mercury to picopascal
inch mercury to kilogram/square centimeter
inch mercury to terapascal
inch mercury to atmosphere
inch mercury to zettabar
inch mercury to dekapascal

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widely used for barometric pressure in weather reports and aviation in the United States, but is considered somewhat outdated elsewhere.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

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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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!