How to use Bar to Atmospheres
Type a value in bar and the atmospheres figure appears straight away. The conversion table further down lists common values.
The formula
atm = bar ÷ 1.01325
Examples
- 1 bar to atmospheres
0.98692327 atm
- 10 bar to atmospheres
9.86923267 atm
- 250 bar to atmospheres
246.73081668 atm
Bar to Atmospheres conversion table
| Bar | Atmospheres |
|---|---|
| 1 | 0.9869 atm |
| 2 | 1.9738 atm |
| 3 | 2.9608 atm |
| 4 | 3.9477 atm |
| 5 | 4.9346 atm |
| 6 | 5.9215 atm |
| 7 | 6.9085 atm |
| 8 | 7.8954 atm |
| 9 | 8.8823 atm |
| 10 | 9.8692 atm |
| 15 | 14.8038 atm |
| 20 | 19.7385 atm |
| 25 | 24.6731 atm |
| 30 | 29.6077 atm |
| 40 | 39.4769 atm |
| 50 | 49.3462 atm |
| 75 | 74.0192 atm |
| 100 | 98.6923 atm |
| 250 | 246.7308 atm |
| 500 | 493.4616 atm |
| 1,000 | 986.9233 atm |
Limitations and assumptions
Review inputs, units and assumptions before relying on the result. Detailed content, accessibility and edge-case review remains ongoing.
Frequently asked questions
How many atmospheres are in one bar?
One bar equals 0.98692327 atm. The formula is atm = bar ÷ 1.01325.
How do I convert bar to atmospheres?
Use atm = bar ÷ 1.01325. For example, 10 bar gives 9.86923267 atm. Enter your own value above and the converter does the arithmetic for you.
How do I convert atmospheres back to bar?
Invert the relationship: reverse the formula so you divide where this one multiplies (and subtract where it adds).
Is this conversion exact?
Pressure units come from different systems: 1 bar = 100,000 Pa, 1 atm = 101,325 Pa and 1 psi is about 6,894.76 Pa.