bars to atmospheres
Convert bar to atmosphere — instant, free, with the formula shown.
How to convert bar to atmosphere
To convert bar to atmosphere, multiply by 0.98692327:
For example, 10 bar × 0.986923 = 9.869233 atm.
bar to atm conversion table
| bars (bar) | atmospheres (atm) |
|---|---|
| 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 |
| 50 bar | 49.346163 atm |
| 100 bar | 98.692327 atm |
| 250 bar | 246.730817 atm |
| 500 bar | 493.461633 atm |
| 1000 bar | 986.923267 atm |
Other bar conversions
Convert to atmosphere from another unit
bar to atm — frequently asked
How many atmospheres are in 1 bar?
1 bar = 0.986923 atmospheres (bar × 0.986923 = atm).
What is the formula to convert bar to atmosphere?
Multiply your bar value by 0.98692327 to get atmosphere.
How do I convert 10 bars to atmospheres?
10 bar = 9.869233 atm. For 100 bar the answer is 98.692327 atm. Use the calculator on this page for any other value.
When to convert bar to atmosphere
Pressure conversion — common questions
What's the difference between bar and psi?
1 bar = 100,000 Pa ≈ 14.504 psi. Bar is metric/SI-friendly; psi is US imperial. Tire pressure in cars is commonly 30–35 psi or ≈ 2.1–2.4 bar.
Is 1 atmosphere the same as 1 bar?
Very close but not identical. 1 atm = 1.01325 bar = 101,325 Pa. 1 bar = 100,000 Pa.
Why is blood pressure in mmHg?
Historically measured with mercury manometers — the pressure that supports a column of mercury that many millimetres tall. 120 mmHg systolic ≈ 16 kPa.