Convert centimeter water (4°C) to femtopascal
Please provide values below to convert centimeter water (4°C) [cmH2O] to femtopascal [fPa], or Convert femtopascal to centimeter water (4°C).
How to Convert Centimeter Water (4°c) to Femtopascal
1 cmH2O = 9.80638e+16 fPa
Example: convert 15 cmH2O to fPa:
15 cmH2O = 15 × 9.80638e+16 fPa = 1.470957e+18 fPa
Centimeter Water (4°c) to Femtopascal Conversion Table
| centimeter water (4°C) | femtopascal |
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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.
Femtopascal
The femtopascal (fPa) is a unit of pressure equal to 10^-15 pascals.
History/Origin
The femtopascal is a derived SI unit introduced as part of the International System of Units' effort to create a comprehensive set of prefixes for very small measurements, although it is rarely used in practice.
Current Use
The femtopascal is primarily used in scientific research involving extremely low pressure measurements, such as in nanotechnology and quantum physics, but it remains a theoretical unit with limited practical application.