How many inch of mercury in 1 oz/in^2? 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 oz/in^2 The SI derived unit for pressure is the pascal. 1 pascal is equal to 0.00029529983071445 inch of mercury, or 0.0023206038081155 oz/in^2. 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 oz/in^2 = 7.85847 oz/in^2
5 inch of mercury to oz/in^2 = 39.29233 oz/in^2
10 inch of mercury to oz/in^2 = 78.58466 oz/in^2
15 inch of mercury to oz/in^2 = 117.877 oz/in^2
20 inch of mercury to oz/in^2 = 157.16933 oz/in^2
25 inch of mercury to oz/in^2 = 196.46166 oz/in^2
30 inch of mercury to oz/in^2 = 235.75399 oz/in^2
40 inch of mercury to oz/in^2 = 314.33866 oz/in^2
50 inch of mercury to oz/in^2 = 392.92332 oz/in^2
You can do the reverse unit conversion from oz/in^2 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widely used for barometric pressure in weather reports and aviation in the United States, but is considered somewhat outdated elsewhere.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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