How many millimeter mercury in 1 centimeter water?
The answer is 0.73555913527668.

We assume you are converting between and **centimeter water [4 °C]**.

You can view more details on each measurement unit:

millimeter mercury or
centimeter water

The SI derived unit for **pressure** is the pascal.

1 pascal is equal to 0.0075006157584566 millimeter mercury, or 0.010197162129779 centimeter water.

Note that rounding errors may occur, so always check the results.

Use this page to learn how to convert between millimeters mercury and centimeters water.

Type in your own numbers in the form to convert the units!

1 millimeter mercury to centimeter water = 1.35951 centimeter water

5 millimeter mercury to centimeter water = 6.79755 centimeter water

10 millimeter mercury to centimeter water = 13.5951 centimeter water

15 millimeter mercury to centimeter water = 20.39265 centimeter water

20 millimeter mercury to centimeter water = 27.1902 centimeter water

25 millimeter mercury to centimeter water = 33.98775 centimeter water

30 millimeter mercury to centimeter water = 40.7853 centimeter water

40 millimeter mercury to centimeter water = 54.3804 centimeter water

50 millimeter mercury to centimeter water = 67.9755 centimeter water

You can do the reverse unit conversion from centimeter water 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.

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