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millimeter mercury | to |
inch of air [0 °C] inch of air [15 °C] |

How many millimeter mercury in 1 inch of air?
The answer is 0.0024152537787796.

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

You can view more details on each measurement unit:

millimeter mercury or
inch of air

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

1 pascal is equal to 0.0075006157584566 millimeter mercury, or 3.1055186930487 inch of air.

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

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

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

1 millimeter mercury to inch of air = 414.03517 inch of air

2 millimeter mercury to inch of air = 828.07033 inch of air

3 millimeter mercury to inch of air = 1242.1055 inch of air

4 millimeter mercury to inch of air = 1656.14067 inch of air

5 millimeter mercury to inch of air = 2070.17583 inch of air

6 millimeter mercury to inch of air = 2484.211 inch of air

7 millimeter mercury to inch of air = 2898.24616 inch of air

8 millimeter mercury to inch of air = 3312.28133 inch of air

9 millimeter mercury to inch of air = 3726.3165 inch of air

10 millimeter mercury to inch of air = 4140.35166 inch of air

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

millimeter mercury to zeptobar

millimeter mercury to millibar

millimeter mercury to microbar

millimeter mercury to inch water

millimeter mercury to micron of mercury

millimeter mercury to centimeter water

millimeter mercury to millimeter water

millimeter mercury to centimeter of mercury

millimeter mercury to nanobar

millimeter mercury to foot mercury

The millimeter of mercury by definition is 133.322387415 Pa (13.5951 g/cm3 × 9.80665 m/s2 × 1 mm), which is approximated with known accuracies of density of mercury and standard gravity.

The torr is defined as 1/760 of one standard atmosphere, while the atmosphere is defined as 101325 pascals. Therefore, 1 Torr is equal to

101325/760 Pa. The decimal form of this fraction is approximately 133.322368421.

The relationship between the torr and the millimeter of mercury is:

1 Torr = 0.999999857533699 mmHg

1 mmHg = 1.000000142466321 Torr

The difference between one millimeter of mercury and one torr, as well as between one atmosphere (101.325 kPa) and 760 mmHg (101.3250144354 kPa), is less than one part in seven million (or less than 0.000015%). This small difference is negligible for most applications outside metrology.

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