›› Convert inch of mercury [0 °C] to bar


›› More information from the unit converter

How many inHg in 1 bar? The answer is 29.529983071445.
We assume you are converting between inch of mercury [0 °C] and bar.
You can view more details on each measurement unit:
inHg or bar
The SI derived unit for pressure is the pascal.
1 pascal is equal to 0.00029529983071445 inHg, or 1.0E-5 bar.
Note that rounding errors may occur, so always check the results.
Use this page to learn how to convert between inches of mercury and bars.
Type in your own numbers in the form to convert the units!

›› Quick conversion chart of inHg to bar

1 inHg to bar = 0.03386 bar

10 inHg to bar = 0.33864 bar

20 inHg to bar = 0.67728 bar

30 inHg to bar = 1.01592 bar

40 inHg to bar = 1.35456 bar

50 inHg to bar = 1.69319 bar

100 inHg to bar = 3.38639 bar

200 inHg to bar = 6.77278 bar

›› Want other units?

You can do the reverse unit conversion from bar to inHg, or enter any two units below:

Enter two units to convert


›› Common pressure conversions

inHg to barad
inHg to centimeter of water
inHg to centitorr
inHg to micron of mercury
inHg to microbar
inHg to zeptopascal
inHg to meter of head
inHg to foot of head
inHg to centimeter mercury
inHg to kilopascal

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widely used for barometric pressure in weather reports and aviation in the United States, but is considered somewhat outdated elsewhere.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

›› Definition: Bar

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.

›› Metric conversions and more

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!