How many inch mercury [0 °C] in 1 ounce/square inch? The answer is 0.12725127857432. We assume you are converting between inch mercury [0 °C] and ounce/square inch. You can view more details on each measurement unit: inch mercury [0 °C] or ounce/square inch The SI derived unit for pressure is the pascal. 1 pascal is equal to 0.00029529980164712 inch mercury [0 °C], 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 mercury and ounces/square inch. Type in your own numbers in the form to convert the units!
1 inch mercury [0 °C] to ounce/square inch = 7.85847 ounce/square inch
5 inch mercury [0 °C] to ounce/square inch = 39.29234 ounce/square inch
10 inch mercury [0 °C] to ounce/square inch = 78.58467 ounce/square inch
15 inch mercury [0 °C] to ounce/square inch = 117.87701 ounce/square inch
20 inch mercury [0 °C] to ounce/square inch = 157.16934 ounce/square inch
25 inch mercury [0 °C] to ounce/square inch = 196.46168 ounce/square inch
30 inch mercury [0 °C] to ounce/square inch = 235.75402 ounce/square inch
40 inch mercury [0 °C] to ounce/square inch = 314.33869 ounce/square inch
50 inch mercury [0 °C] to ounce/square inch = 392.92336 ounce/square inch
You can do the reverse unit conversion from ounce/square inch to inch mercury [0 °C], 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widely used for barometric pressure in weather reports and aviation in the United States, but is considered somewhat outdated elsewhere.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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