Bar to Atmospheres converter
Convert bar (bar) to atmospheres (atm) — results update instantly as you type.
Bar to Atmospheres
To
1 bar = 0.98692327 atm
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How to convert Bar to Atmospheres
Pressure units vary by field: meteorologists use bar and pascals, tire gauges use PSI or bar, and scientists reference standard atmospheres. One standard atmosphere is exactly 101,325 pascals.
All units convert through the pascal, the SI unit equal to one newton per square meter. One bar is exactly 100,000 Pa and one PSI is about 6,894.76 Pa.
Formula
bar × 0.9869232667 = atm
Multiply your bar value by 0.9869232667 to get atmospheres. For the reverse, divide by the same factor.
Bar to Atmospheres conversion table
| Bar | Atmospheres |
|---|---|
| 1 bar | 0.986923 atm |
| 2 bar | 1.973847 atm |
| 5 bar | 4.934616 atm |
| 10 bar | 9.869233 atm |
| 25 bar | 24.673082 atm |
| 100 bar | 98.692327 atm |
Common use cases
- Tire pressure between PSI and bar
- Weather reports in millibars (hPa)
- Scuba diving and depth pressure
- Engineering specifications across regions
Frequently asked questions
Most passenger cars recommend 30–35 PSI (about 2.1–2.4 bar). Check the sticker inside the driver's door for your vehicle's specification.