Convert millimeter mercury (0°C) to centimeter water (4°C)
Please provide values below to convert millimeter mercury (0°C) [mmHg] to centimeter water (4°C) [cmH2O], or Convert centimeter water (4°C) to millimeter mercury (0°C).
How to Convert Millimeter Mercury (0°c) to Centimeter Water (4°c)
1 mmHg = 1.35954742728713 cmH2O
Example: convert 15 mmHg to cmH2O:
15 mmHg = 15 × 1.35954742728713 cmH2O = 20.393211409307 cmH2O
Millimeter Mercury (0°c) to Centimeter Water (4°c) Conversion Table
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Millimeter Mercury (0°c)
Millimeter mercury (0°C), abbreviated as mmHg, is a unit of pressure measurement based on the height of a column of mercury in millimeters at 0°C under standard gravity.
History/Origin
The mmHg originated from the use of mercury barometers in the 17th century to measure atmospheric pressure. It became a standard unit in meteorology and medicine for measuring blood pressure and other pressure-related phenomena.
Current Use
Today, mmHg is primarily used in medicine to measure blood pressure and in meteorology for atmospheric pressure readings. It is also used in various scientific and industrial applications where precise pressure measurements are required.
Centimeter Water (4°c)
Centimeter water (4°C), symbol cmH2O, is a unit of pressure representing the pressure exerted by a one-centimeter column of water at 4 degrees Celsius.
History/Origin
The centimeter water was developed as a practical unit of pressure measurement in medical and engineering contexts, especially for low-pressure measurements such as respiratory and fluid pressure, originating from the use of water columns in manometers.
Current Use
It is primarily used in medical settings to measure intracranial pressure, respiratory pressures, and other low-pressure applications where precise measurement of small pressure differences is required.