Convert hectopascal to attopascal
Please provide values below to convert hectopascal [hPa] to attopascal [aPa], or Convert attopascal to hectopascal.
How to Convert Hectopascal to Attopascal
1 hPa = 1e+20 aPa
Example: convert 15 hPa to aPa:
15 hPa = 15 × 1e+20 aPa = 1.5e+21 aPa
Hectopascal to Attopascal Conversion Table
| hectopascal | attopascal |
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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.
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.