Convert centimeter water (4°C) to hectopascal
Please provide values below to convert centimeter water (4°C) [cmH2O] to hectopascal [hPa], or Convert hectopascal to centimeter water (4°C).
How to Convert Centimeter Water (4°c) to Hectopascal
1 cmH2O = 0.980638 hPa
Example: convert 15 cmH2O to hPa:
15 cmH2O = 15 × 0.980638 hPa = 14.70957 hPa
Centimeter Water (4°c) to Hectopascal Conversion Table
| centimeter water (4°C) | hectopascal |
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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.
Hectopascal
The hectopascal (hPa) is a unit of pressure equal to 100 pascals, commonly used in meteorology to measure atmospheric pressure.
History/Origin
The hectopascal was introduced as part of the metric system and became widely adopted in meteorology during the 20th century for standardizing atmospheric pressure measurements.
Current Use
Today, the hectopascal is predominantly used in weather reporting and forecasting to indicate atmospheric pressure, with standard sea-level pressure approximately 1013 hPa.