Convert atmospheres to bar quickly and accurately using this free online converter
Used for tire pressure, hydraulic systems, scuba diving, and industrial equipment ratings.
💡 The US and UK typically use PSI (pounds per square inch); most of the world uses bar for tire and equipment pressure.
bar = atm × 1.0133
Example: 1 atm × 1.0133 = 1.0133 bar
Use PSI for US/UK vehicles and equipment; bar for international and metric specifications.
Common uses: tire inflation, hydraulics, and pressure gauges.
How do I convert atm to bar?
Multiply the value in Atmospheres by 1.0133. For example: 10 atm = 10.1325 bar.
When should I use Bar instead of Atmospheres?
Use PSI for US/UK vehicles and equipment; bar for international and metric specifications.
Is this converter accurate?
Yes. We use internationally recognized conversion factors, updated to current standards.
| Atmospheres (atm) | Bar (bar) |
|---|---|
| 1 atm | 1.0133 bar |
| 2 atm | 2.0265 bar |
| 5 atm | 5.0663 bar |
| 10 atm | 10.1325 bar |
| 20 atm | 20.265 bar |
| 50 atm | 50.6625 bar |
| 100 atm | 101.325 bar |