Convert technical atmosphere to inch of mercury [0 °C]


technical atmosphere
inHg


More information from the unit converter

How many technical atmosphere in 1 inHg? The answer is 0.034531554268447. We assume you are converting between technical atmosphere and inch of mercury [0 °C]. You can view more details on each measurement unit: technical atmosphere or inHg The SI derived unit for pressure is the pascal. 1 pascal is equal to 1.0197162129779E-5 technical atmosphere, or 0.00029529983071445 inHg. Note that rounding errors may occur, so always check the results. Use this page to learn how to convert between technical atmospheres and inches of mercury. Type in your own numbers in the form to convert the units!



Quick conversion chart of technical atmosphere to inHg

1 technical atmosphere to inHg = 28.95902 inHg

2 technical atmosphere to inHg = 57.91804 inHg

3 technical atmosphere to inHg = 86.87706 inHg

4 technical atmosphere to inHg = 115.83608 inHg

5 technical atmosphere to inHg = 144.7951 inHg

6 technical atmosphere to inHg = 173.75413 inHg

7 technical atmosphere to inHg = 202.71315 inHg

8 technical atmosphere to inHg = 231.67217 inHg

9 technical atmosphere to inHg = 260.63119 inHg

10 technical atmosphere to inHg = 289.59021 inHg


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Common pressure conversions


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widely used for barometric pressure in weather reports and aviation in the United States, but is considered somewhat outdated elsewhere.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


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