How many decibar in 1 inHg? The answer is 0.33863886666667. We assume you are converting between decibar and inch of mercury [0 °C]. You can view more details on each measurement unit: decibar or inHg The SI derived unit for pressure is the pascal. 1 pascal is equal to 0.0001 decibar, or 0.00029529983071445 inHg. Note that rounding errors may occur, so always check the results. Use this page to learn how to convert between decibars and inches of mercury. Type in your own numbers in the form to convert the units!
1 decibar to inHg = 2.953 inHg
5 decibar to inHg = 14.76499 inHg
10 decibar to inHg = 29.52998 inHg
15 decibar to inHg = 44.29497 inHg
20 decibar to inHg = 59.05997 inHg
25 decibar to inHg = 73.82496 inHg
30 decibar to inHg = 88.58995 inHg
40 decibar to inHg = 118.11993 inHg
50 decibar to inHg = 147.64992 inHg
You can do the reverse unit conversion from inHg to decibar, or enter any two units below:
The SI prefix "deci" represents a factor of 10-1, or in exponential notation, 1E-1.
So 1 decibar = 10-1 bars.
The definition of a bar is as follows:
The bar is a measurement unit of pressure, equal to 1,000,000 dynes per square centimetre (baryes), or 100,000 newtons per square metre (pascals). The word bar is of Greek origin, báros meaning weight. Its official symbol is "bar"; the earlier "b" is now deprecated, but still often seen especially as "mb" rather than the proper "mbar" for millibars.
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widely used for barometric pressure in weather reports and aviation in the United States, but is considered somewhat outdated elsewhere.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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