How to convert atmospheres to bars
Formula: bar = atm × 1.01325
Worked example: 1 atm → 1 × 1.01325 = 1.01325 bar
Atmospheres to bars conversion chart
| Atmospheres (atm) | Bars (bar) |
|---|---|
| 0.5 atm | 0.506625 bar |
| 1 atm | 1.01325 bar |
| 1.5 atm | 1.51988 bar |
| 2 atm | 2.0265 bar |
| 3 atm | 3.03975 bar |
| 4 atm | 4.053 bar |
| 5 atm | 5.06625 bar |
| 10 atm | 10.1325 bar |
| 20 atm | 20.265 bar |
| 50 atm | 50.6625 bar |
| 100 atm | 101.325 bar |
What is an atmosphere?
The standard atmosphere is defined as exactly 101,325 pascals, the average air pressure at sea level. Divers count roughly one extra atmosphere for every 10 meters, or 33 feet, of seawater.
What is a bar?
The bar equals 100,000 pascals, very close to the atmospheric pressure at sea level. Europeans inflate car tires to about 2.2 to 2.5 bar, an espresso machine brews at around 9 bar and a full scuba tank holds about 200 bar.