Convert bar to atm
Enter the number of bars that you want to convert to atmospheres.
How to Convert Bars to Atmospheres
The bar and atmosphere are both units of pressure. 1 atmosphere equals 1.01325 bars. This means to convert bars to atmospheres, you divide by 1.01325.
Formula
Step-by-Step Example
Convert 5 bar to atmospheres:
We need to convert bars to atmospheres
Since 1 atm = 1.01325 bar, divide by 1.01325
5 ÷ 1.01325 = 4.9346163336
5 bar = 4.9346163336 atm
Bar to Atmosphere Conversion Table
Quick reference table for common bar to atmosphere conversions. Click any value for detailed calculation.
| Bars (bar) | Atmospheres (atm) |
|---|---|
| 1 bar | 0.9869232667 atm |
| 2 bar | 1.9738465334 atm |
| 5 bar | 4.9346163336 atm |
| 10 bar | 9.8692326672 atm |
| 15 bar | 14.803849001 atm |
| 20 bar | 19.738465334 atm |
| 25 bar | 24.673081668 atm |
| 50 bar | 49.346163336 atm |
| 100 bar | 98.692326672 atm |
About These Units
Bar (bar)
A bar equals 100,000 Pascals or approximately 14.5 PSI. Bar is slightly less than standard atmospheric pressure (1.01325 bar). Bars measure tire pressure, compressed gas cylinders, scuba tank pressure (200-300 bar), and industrial processes.
Atmosphere (atm)
One standard atmosphere (atm) equals 101,325 Pascals, 1.01325 bar, or 14.696 PSI—the average air pressure at sea level. Atmospheres measure diving depth (every 10 meters adds ~1 atm), altitude effects, and chemical reactions. Used as a reference pressure in science.
Frequently Asked Questions
How do I convert bars to atmospheres?
To convert bars to atmospheres, divide the value by 1.01325. For example, 10 bar = 9.8692326672 atm.
How many atmospheres are in 1 bar?
1 bar equals 0.9869232667 atmospheres.
What is the formula for bars to atmospheres?
The formula is: atm = bar ÷ 1.01325.