How many inch of mercury in 1 ounces per 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 ounces per square inch The SI derived unit for pressure is the pascal. 1 pascal is equal to 0.00029529983071445 inch of mercury, or 0.0023206038081155 ounces per 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!
1 inch of mercury to ounces per square inch = 7.85847 ounces per square inch
5 inch of mercury to ounces per square inch = 39.29233 ounces per square inch
10 inch of mercury to ounces per square inch = 78.58466 ounces per square inch
15 inch of mercury to ounces per square inch = 117.877 ounces per square inch
20 inch of mercury to ounces per square inch = 157.16933 ounces per square inch
25 inch of mercury to ounces per square inch = 196.46166 ounces per square inch
30 inch of mercury to ounces per square inch = 235.75399 ounces per square inch
40 inch of mercury to ounces per square inch = 314.33866 ounces per square inch
50 inch of mercury to ounces per square inch = 392.92332 ounces per square inch
You can do the reverse unit conversion from ounces per square inch to inch of mercury, or enter any two units below:
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widely used for barometric pressure in weather reports and aviation in the United States, but is considered somewhat outdated elsewhere.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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