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How many mb in 1 atm?
The answer is 1013.2501.
We assume you are converting between millibar and atmosphere [standard].
You can view more details on each measurement unit:
mb or atm
The SI derived unit for pressure is the pascal.
1 pascal is equal to 0.01 mb, or 9.8692316931427E-6 atm.
Note that rounding errors may occur, so always check the results.
Use this page to learn how to convert between millibars and atmospheres.
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You can do the reverse unit conversion from atm to mb, or enter any two units below:
A millibar (mb) is 1/1000th of a bar, a unit for measurement of pressure. It is not an SI unit of measure, however it is one of the units used in meteorology when describing atmospheric pressure. The SI unit is the pascal (Pa), with 1 millibar = 100 pascals (a hectopascal)
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