Units of measurement
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Atmosphere (atm)
Millibar (mbar)
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Atmosphere (atm)
Atmosphere (atm) — a unit of pressure based on the average atmospheric pressure at sea level, equal to 101,325 pascals.
Millibar (mbar)
Millibar (mbar) — a unit of pressure equal to one-thousandth of a bar. Frequently used in meteorology to measure atmospheric pressure.