Convert Atmospheres to bars
1 atmosphere = 1.0132 bars · bar = atm × 1.01325
When you need this conversion
Diving and laboratory work use these interchangeably because one atmosphere is very close to one bar. The small difference matters in precise chemistry and in dive tables where depth translates directly into pressure.
Atmospheres to bars conversion table
| Atmospheres (atm) | Bars (bar) |
|---|---|
| 1 atm | 1.0132 bar |
| 2 atm | 2.0265 bar |
| 3 atm | 3.0398 bar |
| 5 atm | 5.0663 bar |
| 10 atm | 10.1325 bar |
| 15 atm | 15.1988 bar |
| 20 atm | 20.265 bar |
| 25 atm | 25.3313 bar |
| 50 atm | 50.6625 bar |
| 75 atm | 75.9938 bar |
| 100 atm | 101.33 bar |
| 250 atm | 253.31 bar |
| 500 atm | 506.63 bar |
| 1,000 atm | 1,013.25 bar |
The formula
bar = atm × 1.01325Because both units measure pressure, the conversion is a single multiplication by a fixed factor. That factor never changes, so the result is exact.
Convert the other way
Bars to atmospheres →Related pressure conversions
- Pascals to bars
- Kilopascals to bars
- Pounds per square inch to bars
- Atmospheres to pascals
- Atmospheres to kilopascals
- Atmospheres to pounds per square inch
- Atmospheres to torr
- Torr to bars
- Pascals to kilopascals
- Pascals to pounds per square inch
- Pascals to atmospheres
- Pascals to torr
Frequently asked questions
- How many bars are in a atmosphere?
- There are 1.0132 bars in 1 atmosphere. The formula is bar = atm × 1.01325.
- How do you convert atmospheres to bars?
- Use the formula bar = atm × 1.01325. For example, 10 atmospheres equals 10.1325 bars.
- Is the atmospheres to bars conversion exact?
- Yes. Atmospheres and bars are both units of pressure, related by an exact defined factor. Displayed results are rounded for readability.
- What is atm short for?
- atm is the standard symbol for atmosphere. bar is the symbol for bar.