Convert inch mercury (60°F) to attopascal
Please provide values below to convert inch mercury (60°F) [inHg] to attopascal [aPa], or Convert attopascal to inch mercury (60°F).
How to Convert Inch Mercury (60°f) to Attopascal
1 inHg = 3.37685e+21 aPa
Example: convert 15 inHg to aPa:
15 inHg = 15 × 3.37685e+21 aPa = 5.065275e+22 aPa
Inch Mercury (60°f) to Attopascal Conversion Table
| inch mercury (60°F) | attopascal |
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Inch Mercury (60°f)
Inch of mercury (60°F) is a unit of pressure measurement representing the height of a column of mercury 1 inch high at 60°F under standard gravity.
History/Origin
Originally used in barometry and meteorology, the inch of mercury has been a standard unit for measuring atmospheric pressure in the Imperial system since the 19th century.
Current Use
It is still used in some regions, such as the United States, primarily for measuring atmospheric pressure in weather reports and aviation, although it is gradually being replaced by Pascals in scientific contexts.
Attopascal
The attopascal (aPa) is a unit of pressure equal to 10^-18 pascals, representing an extremely small pressure measurement.
History/Origin
The attopascal was introduced as part of the SI prefixes to denote very small quantities of pressure, but it is rarely used in practical applications due to its minuscule magnitude.
Current Use
The attopascal is primarily used in scientific research and theoretical contexts where extremely small pressure differences are relevant, although it remains largely a conceptual unit.