How many millimeter mercury in 1 centimeter mercury?
The answer is 10.000000193891.

We assume you are converting between and **centimeter mercury [0 °C]**.

You can view more details on each measurement unit:

millimeter mercury or
centimeter mercury

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

1 pascal is equal to 0.0075006157584566 millimeter mercury, or 0.00075006156130264 centimeter mercury.

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

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

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

1 millimeter mercury to centimeter mercury = 0.1 centimeter mercury

10 millimeter mercury to centimeter mercury = 1 centimeter mercury

20 millimeter mercury to centimeter mercury = 2 centimeter mercury

30 millimeter mercury to centimeter mercury = 3 centimeter mercury

40 millimeter mercury to centimeter mercury = 4 centimeter mercury

50 millimeter mercury to centimeter mercury = 5 centimeter mercury

100 millimeter mercury to centimeter mercury = 10 centimeter mercury

200 millimeter mercury to centimeter mercury = 20 centimeter mercury

You can do the reverse unit conversion from centimeter mercury 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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