## ››Convert to millibar

 millimeter mercury millibar

How many millimeter mercury in 1 millibar? The answer is 0.75006157584566.
We assume you are converting between and millibar.
You can view more details on each measurement unit:
millimeter mercury or millibar
The SI derived unit for pressure is the pascal.
1 pascal is equal to 0.0075006157584566 millimeter mercury, or 0.01 millibar.
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!

## ››Quick conversion chart of millimeter mercury to millibar

1 millimeter mercury to millibar = 1.33322 millibar

5 millimeter mercury to millibar = 6.66612 millibar

10 millimeter mercury to millibar = 13.33224 millibar

15 millimeter mercury to millibar = 19.99836 millibar

20 millimeter mercury to millibar = 26.66448 millibar

25 millimeter mercury to millibar = 33.3306 millibar

30 millimeter mercury to millibar = 39.99672 millibar

40 millimeter mercury to millibar = 53.32895 millibar

50 millimeter mercury to millibar = 66.66119 millibar

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

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## ››Definition: Millimeter 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.

## ››Definition: Millibar

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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