How many decibar in 1 inch mercury?
The answer is 0.3386389.

We assume you are converting between **decibar** and .

You can view more details on each measurement unit:

decibar or
inch mercury

The SI derived unit for **pressure** is the pascal.

1 pascal is equal to 0.0001 decibar, or 0.00029529980164712 inch mercury.

Note that rounding errors may occur, so always check the results.

Use this page to learn how to convert between decibars and inches mercury.

Type in your own numbers in the form to convert the units!

1 decibar to inch mercury = 2.953 inch mercury

5 decibar to inch mercury = 14.76499 inch mercury

10 decibar to inch mercury = 29.52998 inch mercury

15 decibar to inch mercury = 44.29497 inch mercury

20 decibar to inch mercury = 59.05996 inch mercury

25 decibar to inch mercury = 73.82495 inch mercury

30 decibar to inch mercury = 88.58994 inch mercury

40 decibar to inch mercury = 118.11992 inch mercury

50 decibar to inch mercury = 147.6499 inch mercury

You can do the reverse unit conversion from inch mercury to decibar, or enter any two units below:

decibar to pascal

decibar to poundal/square foot

decibar to dyne/square centimeter

decibar to newton/square millimeter

decibar to ton/square foot

decibar to ton/square meter

decibar to pound/square foot

decibar to hectobar

decibar to meter of air

decibar to foot water

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widely used for barometric pressure in weather reports and aviation in the United States, but is considered somewhat outdated elsewhere.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

**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, 100 kg, US fluid ounce, 6'3", 10 stone 4, cubic cm,
metres squared, grams, moles, feet per second, and many more!