How many millimeter mercury in 1 mB? The answer is 0.75006157584566. We assume you are converting between millimeter mercury [0 °C] and millibar. You can view more details on each measurement unit: millimeter mercury or mB The SI derived unit for pressure is the pascal. 1 pascal is equal to 0.0075006157584566 millimeter mercury, or 0.01 mB. Note that rounding errors may occur, so always check the results. Use this page to learn how to convert between millimeters mercury and millibars. Type in your own numbers in the form to convert the units!
1 millimeter mercury to mB = 1.33322 mB
5 millimeter mercury to mB = 6.66612 mB
10 millimeter mercury to mB = 13.33224 mB
15 millimeter mercury to mB = 19.99836 mB
20 millimeter mercury to mB = 26.66448 mB
25 millimeter mercury to mB = 33.3306 mB
30 millimeter mercury to mB = 39.99672 mB
40 millimeter mercury to mB = 53.32895 mB
50 millimeter mercury to mB = 66.66119 mB
You can do the reverse unit conversion from mB to millimeter mercury, or enter any two units below:
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.
A millibar (mb) is 1/1000th of a bar, a unit for measurement of pressure. It is not an SI unit of measure, however it is one of the units used in meteorology when describing atmospheric pressure. The SI unit is the pascal (Pa), with 1 millibar = 100 pascals (a hectopascal)
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