How many bar in 1 atmosphere?
The answer is 1.01325.
We assume you are converting between bar and atmosphere [standard].
You can view more details on each measurement unit:
bar or
atmosphere
The SI derived unit for pressure is the pascal.
1 pascal is equal to 1.0E-5 bar, or 9.8692326671601E-6 atmosphere.
Note that rounding errors may occur, so always check the results.
Use this page to learn how to convert between bars and atmospheres.
Type in your own numbers in the form to convert the units!

Quick conversion chart of bar to atmosphere

1 bar to atmosphere = 0.98692 atmosphere

5 bar to atmosphere = 4.93462 atmosphere

10 bar to atmosphere = 9.86923 atmosphere

20 bar to atmosphere = 19.73847 atmosphere

30 bar to atmosphere = 29.6077 atmosphere

40 bar to atmosphere = 39.47693 atmosphere

50 bar to atmosphere = 49.34616 atmosphere

75 bar to atmosphere = 74.01925 atmosphere

100 bar to atmosphere = 98.69233 atmosphere

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You can do the reverse unit conversion from
atmosphere to bar, or enter any two units below:

The bar is a measurement unit of pressure, equal to 1,000,000 dynes per square centimetre (baryes), or 100,000 newtons per square metre (pascals). The word bar is of Greek origin, báros meaning weight. Its official symbol is "bar"; the earlier "b" is now deprecated, but still often seen especially as "mb" rather than the proper "mbar" for millibars.

Definition: Atmosphere

The standard atmosphere (symbol: atm) is a unit of pressure defined as 101325 Pa (1.01325 bar). It is sometimes used as a reference pressure or standard pressure. It is approximately equal to Earth's atmospheric pressure at sea level.

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