Convert bar to standard atmosphere
Here you can quickly calculate how many standard atmosphere fit in one bar.
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- 1 bar = 0.986923 atm
- 1 atm = 1.01325 bar
Example: bar to standard atmosphere
- 1 bar = 0.986923 standard atmosphere
Bar to standard atmosphere conversion table
| bar | standard atmosphere |
|---|---|
| 1 | 0.986923 |
| 2 | 1.973847 |
| 5 | 4.934616 |
| 10 | 9.869233 |
| 20 | 19.738465 |
| 50 | 49.346163 |
| 100 | 98.692327 |
Bar to standard atmosphere formula
To convert bar to standard atmosphere, multiply by 0.986923.
1 bar = 0.986923 atm
Example: 1 bar = 0.986923 standard atmosphere
Common pressure conversion mistakes
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Tire pressure is quoted in bar in Europe and psi in the US: 1 bar is about 14.5 psi. The recommended 2.5 bar equals about 36 psi, inflating to '25 psi' on the assumption they match leaves the tire dangerously underinflated. Multiply bar by 14.5 to get psi.
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One atmosphere is not exactly one bar: 1 atm = 1.01325 bar = 101.325 kPa. There is also the technical atmosphere (1 kgf/cm²) at about 0.981 bar. The ~1% differences rarely matter day to day, but engineering and diving calculations need the right unit.
Quick bar and standard atmosphere conversion quiz
Score:
0
100 standard atmosphere equals 101 bar.
Correct answer: 100 standard atmosphere = 101 bar.
110 bar equals 119 standard atmosphere.
Correct answer: 110 bar = 109 standard atmosphere.
13.5 standard atmosphere equals 15 bar.
Correct answer: 13.5 standard atmosphere = 13.7 bar.
11.7 bar equals 11.5 standard atmosphere.
Correct answer: 11.7 bar = 11.5 standard atmosphere.
155 standard atmosphere equals 157 bar.
Correct answer: 155 standard atmosphere = 157 bar.