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

inch of mercury

›› More information from the unit converter

How many inch of mercury in 1 torr? The answer is 0.039370072825186.
We assume you are converting between inch of mercury [0 °C] and torr.
You can view more details on each measurement unit:
inch of mercury or torr
The SI derived unit for pressure is the pascal.
1 pascal is equal to 0.00029529983071445 inch of mercury, or 0.0075006168270417 torr.
Note that rounding errors may occur, so always check the results.
Use this page to learn how to convert between inches of mercury and torrs.
Type in your own numbers in the form to convert the units!

›› Quick conversion chart of inch of mercury to torr

1 inch of mercury to torr = 25.4 torr

2 inch of mercury to torr = 50.80001 torr

3 inch of mercury to torr = 76.20001 torr

4 inch of mercury to torr = 101.60002 torr

5 inch of mercury to torr = 127.00002 torr

6 inch of mercury to torr = 152.40002 torr

7 inch of mercury to torr = 177.80003 torr

8 inch of mercury to torr = 203.20003 torr

9 inch of mercury to torr = 228.60003 torr

10 inch of mercury to torr = 254.00004 torr

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›› Common pressure conversions

inch of mercury to nanopascal
inch of mercury to picopascal
inch of mercury to exabar
inch of mercury to ton/square inch
inch of mercury to millimeter of water
inch of mercury to millimeter water
inch of mercury to newton/square millimeter
inch of mercury to gigabar
inch of mercury to foot of head
inch of mercury to femtopascal

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widely used for barometric pressure in weather reports and aviation in the United States, but is considered somewhat outdated elsewhere.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

The torr is a non-SI unit of pressure, named after Evangelista Torricelli. Its symbol is Torr.

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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!