1 atmosphere to bars
1 atm = 1.01325 bar. Change the amount below, or read the formula and the reference table further down.
1 atmosphere equals
bars
1 atm = 1.01325 bar
The formula
Atmospheres and bars both measure pressure from the same zero, so a single multiplier does the job.
bar = atm × 1.01325
Going the other way? Convert bars to atmospheres.
Atmospheres to bars table
Values either side of 1 atm.
| Atmospheres (atm) | Bars (bar) |
|---|---|
| -4 | -4.053 |
| -3.5 | -3.5464 |
| -3 | -3.0398 |
| -2.5 | -2.5331 |
| -2 | -2.0265 |
| -1.5 | -1.5199 |
| -1 | -1.0133 |
| -0.5 | -0.506625 |
| 0 | 0 |
| 0.5 | 0.506625 |
| 1 | 1.0133 |
| 1.5 | 1.5199 |
| 2 | 2.0265 |
| 2.5 | 2.5331 |
| 3 | 3.0398 |
| 3.5 | 3.5464 |
| 4 | 4.053 |
| 4.5 | 4.5596 |
| 5 | 5.0663 |
| 5.5 | 5.5729 |
| 6 | 6.0795 |
Questions people ask
- How many bars are in a atmosphere?
- One atmosphere equals 1.01325 bars.
- How do I convert atmospheres to bars by hand?
- Multiply the number of atmospheres by 1.01325. For a rough check, 1 is close enough for most everyday use.
- What is 1 atmosphere in bars?
- 1 atmosphere is 1.01325 bars.
Calcuit generates this page from a unit table, so the factors here match every other page on the site.