Units of measurement
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Inches of mercury (inHg)
Atmosphere (atm)
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Inches of mercury (inHg)
Inches of mercury (inHg) — a unit of pressure equal to the pressure exerted by a 1-inch high column of mercury. Used for measuring air pressure and in aviation.
Atmosphere (atm)
Atmosphere (atm) — a unit of pressure based on the average atmospheric pressure at sea level, equal to 101,325 pascals.