›› Convert inch of mercury [0 C] to ounce/square inch


inch of mercury
ounce/square inch

›› More information from the unit converter

How many inch of mercury in 1 ounce/square inch? The answer is 0.12725129110008.
We assume you are converting between inch of mercury [0 C] and ounce/square inch.
You can view more details on each measurement unit:
inch of mercury or ounce/square inch
The SI derived unit for pressure is the pascal.
1 pascal is equal to 0.00029529983071445 inch of mercury, or 0.0023206038081155 ounce/square inch.
Note that rounding errors may occur, so always check the results.
Use this page to learn how to convert between inches of mercury and ounces/square inch.
Type in your own numbers in the form to convert the units!


›› Quick conversion chart of inch of mercury to ounce/square inch

1 inch of mercury to ounce/square inch = 7.85847 ounce/square inch

5 inch of mercury to ounce/square inch = 39.29233 ounce/square inch

10 inch of mercury to ounce/square inch = 78.58466 ounce/square inch

15 inch of mercury to ounce/square inch = 117.877 ounce/square inch

20 inch of mercury to ounce/square inch = 157.16933 ounce/square inch

25 inch of mercury to ounce/square inch = 196.46166 ounce/square inch

30 inch of mercury to ounce/square inch = 235.75399 ounce/square inch

40 inch of mercury to ounce/square inch = 314.33866 ounce/square inch

50 inch of mercury to ounce/square inch = 392.92332 ounce/square inch


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›› Common pressure conversions

inch of mercury to decitorr
inch of mercury to newton/square meter
inch of mercury to femtopascal
inch of mercury to millihg
inch of mercury to ton/square inch
inch of mercury to terapascal
inch of mercury to micrometer of mercury
inch of mercury to kilogram/square centimeter
inch of mercury to inch mercury
inch of mercury to foot water


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widely used for barometric pressure in weather reports and aviation in the United States, but is considered somewhat outdated elsewhere.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


›› Metric conversions and more

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!