| Did you mean to convert | atmosphere [standard] atmosphere [technical] |
to | mm Hg |
How many atmosphere in 1 mm Hg? The answer is 0.0013157896611399. We assume you are converting between atmosphere [standard] and millimeter mercury [0 °C]. You can view more details on each measurement unit: atmosphere or mm Hg The SI derived unit for pressure is the pascal. 1 pascal is equal to 9.8692326671601E-6 atmosphere, or 0.0075006157584566 mm Hg. 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 mm Hg = 759.99989 mm Hg
2 atmosphere to mm Hg = 1519.99978 mm Hg
3 atmosphere to mm Hg = 2279.99968 mm Hg
4 atmosphere to mm Hg = 3039.99957 mm Hg
5 atmosphere to mm Hg = 3799.99946 mm Hg
6 atmosphere to mm Hg = 4559.99935 mm Hg
7 atmosphere to mm Hg = 5319.99924 mm Hg
8 atmosphere to mm Hg = 6079.99913 mm Hg
9 atmosphere to mm Hg = 6839.99903 mm Hg
10 atmosphere to mm Hg = 7599.99892 mm Hg
You can do the reverse unit conversion from mm Hg to atmosphere, or enter any two units below:
The standard atmosphere (symbol: atm) is a unit of pressure defined as 101325 Pa (1.01325 bar). It is sometimes used as a reference pressure or standard pressure. It is approximately equal to Earth's atmospheric pressure at sea level.
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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