How many inch of mercury in 1 mtorr? 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 mtorr The SI derived unit for pressure is the pascal. 1 pascal is equal to 0.00029529983071445 inch of mercury, or 7.5006167382113 mtorr. 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!
1 inch of mercury to mtorr = 25400.00352 mtorr
2 inch of mercury to mtorr = 50800.00703 mtorr
3 inch of mercury to mtorr = 76200.01055 mtorr
4 inch of mercury to mtorr = 101600.01406 mtorr
5 inch of mercury to mtorr = 127000.01758 mtorr
6 inch of mercury to mtorr = 152400.02109 mtorr
7 inch of mercury to mtorr = 177800.02461 mtorr
8 inch of mercury to mtorr = 203200.02812 mtorr
9 inch of mercury to mtorr = 228600.03164 mtorr
10 inch of mercury to mtorr = 254000.03515 mtorr
You can do the reverse unit conversion from mtorr to inch of mercury, or enter any two units below:
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widely used for barometric pressure in weather reports and aviation in the United States, but is considered somewhat outdated elsewhere.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.
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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