Barometric Pressure Conversion
Convert barometric pressure readings between various units like inches of mercury (inHg), millibars (mb), and hectopascals (hPa).
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Understanding Barometric Pressure Conversions
Barometric pressure, or atmospheric pressure, is the force exerted by the weight of the air in the atmosphere. It's a key indicator for weather forecasting, and pilots rely on it for altitude readings. This pressure is measured in various units around the world, making conversions a common necessity.
Common Units for Barometric Pressure
- Inches of Mercury (inHg): The standard unit used in aviation and weather reporting in the United States. It represents the height of a column of mercury that the atmospheric pressure can support.
- Millibars (mb) or Hectopascals (hPa): These two units are equivalent (1 mb = 1 hPa) and are the standard in most of the world for meteorology. The hectopascal is the official SI unit.
- Pounds per Square Inch (psi): While not a common meteorological unit, it's a familiar pressure unit for many people.
- Standard Atmospheres (atm): A reference unit defined as the average pressure at sea level (1 atm = 29.92 inHg).
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