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

inch of mercury

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How many inch of mercury in 1 millitorr? The answer is 3.9370073291449E-5.
We assume you are converting between inch of mercury [0 °C] and millitorr.
You can view more details on each measurement unit:
inch of mercury or millitorr
The SI derived unit for pressure is the pascal.
1 pascal is equal to 0.00029529983071445 inch of mercury, or 7.5006167382113 millitorr.
Note that rounding errors may occur, so always check the results.
Use this page to learn how to convert between inches of mercury and millitorr.
Type in your own numbers in the form to convert the units!

›› Quick conversion chart of inch of mercury to millitorr

1 inch of mercury to millitorr = 25400.00352 millitorr

2 inch of mercury to millitorr = 50800.00703 millitorr

3 inch of mercury to millitorr = 76200.01055 millitorr

4 inch of mercury to millitorr = 101600.01406 millitorr

5 inch of mercury to millitorr = 127000.01758 millitorr

6 inch of mercury to millitorr = 152400.02109 millitorr

7 inch of mercury to millitorr = 177800.02461 millitorr

8 inch of mercury to millitorr = 203200.02812 millitorr

9 inch of mercury to millitorr = 228600.03164 millitorr

10 inch of mercury to millitorr = 254000.03515 millitorr

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

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›› Common pressure conversions

inch of mercury to yottapascal
inch of mercury to inch of water
inch of mercury to microbar
inch of mercury to kilobar
inch of mercury to yoctopascal
inch of mercury to centimeter of water
inch of mercury to inch water column
inch of mercury to nanobar
inch of mercury to foot mercury
inch of mercury to inch of air

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widely used for barometric pressure in weather reports and aviation in the United States, but is considered somewhat outdated elsewhere.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

The SI prefix "milli" represents a factor of 10-3, or in exponential notation, 1E-3.

So 1 millitorr = 10-3 torrs.

The definition of a torr is as follows:

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

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