Did you mean to convert |
atmosphere [standard] atmosphere [technical] |
to |
millimeter mercury |

How many atmosphere in 1 millimeter mercury?
The answer is 0.0013157895312816.

We assume you are converting between **atmosphere [standard]** and .

You can view more details on each measurement unit:

atmosphere or
millimeter mercury

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

1 pascal is equal to 9.8692316931427E-6 atmosphere, or 0.0075006157584566 millimeter mercury.

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

Use this page to learn how to convert between atmospheres and millimeters mercury.

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

1 atmosphere to millimeter mercury = 759.99997 millimeter mercury

2 atmosphere to millimeter mercury = 1519.99993 millimeter mercury

3 atmosphere to millimeter mercury = 2279.9999 millimeter mercury

4 atmosphere to millimeter mercury = 3039.99987 millimeter mercury

5 atmosphere to millimeter mercury = 3799.99983 millimeter mercury

6 atmosphere to millimeter mercury = 4559.9998 millimeter mercury

7 atmosphere to millimeter mercury = 5319.99977 millimeter mercury

8 atmosphere to millimeter mercury = 6079.99973 millimeter mercury

9 atmosphere to millimeter mercury = 6839.9997 millimeter mercury

10 atmosphere to millimeter mercury = 7599.99967 millimeter mercury

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

atmosphere to microbar

atmosphere to hectobar

atmosphere to picobar

atmosphere to femtobar

atmosphere to millihg

atmosphere to sthene/square meter

atmosphere to dekapascal

atmosphere to kilopond/square centimeter

atmosphere to foot of mercury

atmosphere to inch of 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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