How many inHg in 1 millibar?
The answer is 0.029529983071445.

We assume you are converting between **inch of mercury [0 °C]** and **millibar**.

You can view more details on each measurement unit:

inHg or
millibar

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

1 pascal is equal to 0.00029529983071445 inHg, or 0.01 millibar.

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

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

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

1 inHg to millibar = 33.86389 millibar

2 inHg to millibar = 67.72777 millibar

3 inHg to millibar = 101.59166 millibar

4 inHg to millibar = 135.45555 millibar

5 inHg to millibar = 169.31943 millibar

6 inHg to millibar = 203.18332 millibar

7 inHg to millibar = 237.04721 millibar

8 inHg to millibar = 270.91109 millibar

9 inHg to millibar = 304.77498 millibar

10 inHg to millibar = 338.63887 millibar

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

inHg to megapascal

inHg to millipascal

inHg to zettapascal

inHg to centihg

inHg to barye

inHg to micrometer of water

inHg to centitorr

inHg to kilopascal

inHg to meganewton/square meter

inHg to kilopond/square centimeter

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widely used for barometric pressure in weather reports and aviation in the United States, but is considered somewhat outdated elsewhere.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

A millibar (mb) is 1/1000th of a bar, a unit for measurement of pressure. It is not an SI unit of measure, however it is one of the units used in meteorology when describing atmospheric pressure. The SI unit is the pascal (Pa), with 1 millibar = 100 pascals (a hectopascal)

**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!