How many millibar in 1 millimeters mercury? The answer is 1.33322387415. We assume you are converting between millibar and millimeter mercury [0 °C]. You can view more details on each measurement unit: millibar or millimeters mercury The SI derived unit for pressure is the pascal. 1 pascal is equal to 0.01 millibar, or 0.0075006157584566 millimeters mercury. Note that rounding errors may occur, so always check the results. Use this page to learn how to convert between millibars and millimeters mercury. Type in your own numbers in the form to convert the units!
1 millibar to millimeters mercury = 0.75006 millimeters mercury
5 millibar to millimeters mercury = 3.75031 millimeters mercury
10 millibar to millimeters mercury = 7.50062 millimeters mercury
20 millibar to millimeters mercury = 15.00123 millimeters mercury
30 millibar to millimeters mercury = 22.50185 millimeters mercury
40 millibar to millimeters mercury = 30.00246 millimeters mercury
50 millibar to millimeters mercury = 37.50308 millimeters mercury
75 millibar to millimeters mercury = 56.25462 millimeters mercury
100 millibar to millimeters mercury = 75.00616 millimeters mercury
You can do the reverse unit conversion from millimeters mercury to millibar, or enter any two units below:
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)
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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