| Did you mean to convert | water column [centimeter] water column [inch] water column [millimeter] |
to | millimeters mercury |
How many water column in 1 millimeters mercury? The answer is 1.35951. We assume you are converting between water column [centimeter] and millimeter mercury [0 °C]. You can view more details on each measurement unit: water column or millimeters mercury The SI derived unit for pressure is the pascal. 1 pascal is equal to 0.010197162129779 water column, 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 water column and millimeters mercury. Type in your own numbers in the form to convert the units!
1 water column to millimeters mercury = 0.73556 millimeters mercury
5 water column to millimeters mercury = 3.6778 millimeters mercury
10 water column to millimeters mercury = 7.35559 millimeters mercury
20 water column to millimeters mercury = 14.71118 millimeters mercury
30 water column to millimeters mercury = 22.06677 millimeters mercury
40 water column to millimeters mercury = 29.42237 millimeters mercury
50 water column to millimeters mercury = 36.77796 millimeters mercury
75 water column to millimeters mercury = 55.16694 millimeters mercury
100 water column to millimeters mercury = 73.55591 millimeters mercury
You can do the reverse unit conversion from millimeters mercury to water column, 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.
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