Convert centimeter mercury (0°C) to femtopascal
Please provide values below to convert centimeter mercury (0°C) [cmHg] to femtopascal [fPa], or Convert femtopascal to centimeter mercury (0°C).
How to Convert Centimeter Mercury (0°c) to Femtopascal
1 cmHg = 1.33322387e+18 fPa
Example: convert 15 cmHg to fPa:
15 cmHg = 15 × 1.33322387e+18 fPa = 1.999835805e+19 fPa
Centimeter Mercury (0°c) to Femtopascal Conversion Table
| centimeter mercury (0°C) | femtopascal |
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Centimeter Mercury (0°c)
Centimeter mercury (0°C) is a unit of pressure measurement representing the pressure exerted by a one-centimeter column of mercury at 0°C.
History/Origin
The centimeter mercury was historically used in barometry and pressure measurements before the adoption of the pascal. It originated from the use of mercury columns in barometers to measure atmospheric pressure, with the unit reflecting the height of the mercury column.
Current Use
Today, the centimeter mercury is largely obsolete and replaced by SI units like the pascal. However, it is still used in some medical and historical contexts to measure blood pressure and atmospheric pressure in certain regions.
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.