| Did you mean to convert | atmosphere [standard] atmosphere [technical] |
to | millimeter mercury |
How many atmosphere [standard] in 1 millimeter mercury? 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 [standard] or millimeter mercury The SI derived unit for pressure is the pascal. 1 pascal is equal to 9.8692326671601E-6 atmosphere [standard], 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 [standard] to millimeter mercury = 759.99989 millimeter mercury
2 atmosphere [standard] to millimeter mercury = 1519.99978 millimeter mercury
3 atmosphere [standard] to millimeter mercury = 2279.99968 millimeter mercury
4 atmosphere [standard] to millimeter mercury = 3039.99957 millimeter mercury
5 atmosphere [standard] to millimeter mercury = 3799.99946 millimeter mercury
6 atmosphere [standard] to millimeter mercury = 4559.99935 millimeter mercury
7 atmosphere [standard] to millimeter mercury = 5319.99924 millimeter mercury
8 atmosphere [standard] to millimeter mercury = 6079.99913 millimeter mercury
9 atmosphere [standard] to millimeter mercury = 6839.99903 millimeter mercury
10 atmosphere [standard] to millimeter mercury = 7599.99892 millimeter mercury
You can do the reverse unit conversion from millimeter mercury to atmosphere [standard], 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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