How many millipascal in 1 millimeter mercury?
The answer is 133322.387415.
We assume you are converting between millipascal and .
You can view more details on each measurement unit:
millipascal or millimeter mercury
The SI derived unit for pressure is the pascal.
1 pascal is equal to 1000 millipascal, 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 millipascals and millimeters mercury.
Type in your own numbers in the form to convert the units!
You can do the reverse unit conversion from millimeter mercury to millipascal, or enter any two units below:
millipascal to foot mercury
millipascal to kip/square inch
millipascal to inch of water
millipascal to dyne/square centimeter
millipascal to terapascal
millipascal to foot of mercury
millipascal to inch of mercury
millipascal to barye
millipascal to exapascal
millipascal to ton/square meter
The SI prefix "milli" represents a factor of 10-3, or in exponential notation, 1E-3.
So 1 millipascal = 10-3 pascals.
The definition of a pascal is as follows:
The pascal (symbol Pa) is the SI unit of pressure.It is equivalent to one newton per square metre. The unit is named after Blaise Pascal, the eminent French mathematician, physicist and philosopher.
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.
ConvertUnits.com provides an online conversion calculator for all types of measurement units. You can find metric conversion tables for SI units, as well as English units, currency, and other data. Type in unit symbols, abbreviations, or full names for units of length, area, mass, pressure, and other types. Examples include mm, inch, 100 kg, US fluid ounce, 6'3", 10 stone 4, cubic cm, metres squared, grams, moles, feet per second, and many more!