| Did you mean to convert | pound/square inch pound/square inch [gauge] pound/square inch [absolute] |
to | inches Hg |
How many pound/square inch [gauge] in 1 inches Hg? The answer is 0.49115420057253. We assume you are converting between pound/square inch [gauge] and inch mercury [0 °C]. You can view more details on each measurement unit: pound/square inch [gauge] or inches Hg The SI derived unit for pressure is the pascal. 1 pascal is equal to 0.00014503773800722 pound/square inch [gauge], or 0.00029529980164712 inches Hg. Note that rounding errors may occur, so always check the results. Use this page to learn how to convert between pounds/square inch and inches mercury. Type in your own numbers in the form to convert the units!
1 pound/square inch [gauge] to inches Hg = 2.03602 inches Hg
5 pound/square inch [gauge] to inches Hg = 10.1801 inches Hg
10 pound/square inch [gauge] to inches Hg = 20.3602 inches Hg
15 pound/square inch [gauge] to inches Hg = 30.54031 inches Hg
20 pound/square inch [gauge] to inches Hg = 40.72041 inches Hg
25 pound/square inch [gauge] to inches Hg = 50.90051 inches Hg
30 pound/square inch [gauge] to inches Hg = 61.08061 inches Hg
40 pound/square inch [gauge] to inches Hg = 81.44082 inches Hg
50 pound/square inch [gauge] to inches Hg = 101.80102 inches Hg
You can do the reverse unit conversion from inches Hg to pound/square inch [gauge], or enter any two units below:
Psig (pound-force per square inch gauge) is a unit of pressure relative to the surrounding atmosphere. By contrast, psia measures pressure relative to a vacuum (such as that in space). At sea level, Earth's atmosphere actually exerts a pressure of 14.7 psi. Humans do not feel this pressure because internal pressure of liquid in their bodies matches the external pressure. If a pressure gauge is calibrated to read zero in space, then at sea level on Earth it would read 14.7 psi. Thus a reading of 30 psig on a tire gauge represents an absolute pressure of 44.7 psi.
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widely used for barometric pressure in weather reports and aviation in the United States, but is considered somewhat outdated elsewhere.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.
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, 70 kg, 150 lbs, US fluid ounce, 6'3", 10 stone 4, cubic cm, metres squared, grams, moles, feet per second, and many more!