1 PSI to atmospheres
1 psi = 0.06804596 atm. Change the amount below, or read the formula and the reference table further down.
1 PSI equals
atmospheres
1 psi = 0.06804596 atm
The formula
PSI and atmospheres both measure pressure from the same zero, so a single multiplier does the job.
atm = psi × 0.0680459639
Going the other way? Convert atmospheres to PSI.
PSI to atmospheres table
Values either side of 1 psi.
| PSI (psi) | Atmospheres (atm) |
|---|---|
| -4 | -0.272184 |
| -3.5 | -0.238161 |
| -3 | -0.204138 |
| -2.5 | -0.170115 |
| -2 | -0.136092 |
| -1.5 | -0.102069 |
| -1 | -0.068046 |
| -0.5 | -0.034023 |
| 0 | 0 |
| 0.5 | 0.034023 |
| 1 | 0.068046 |
| 1.5 | 0.102069 |
| 2 | 0.136092 |
| 2.5 | 0.170115 |
| 3 | 0.204138 |
| 3.5 | 0.238161 |
| 4 | 0.272184 |
| 4.5 | 0.306207 |
| 5 | 0.34023 |
| 5.5 | 0.374253 |
| 6 | 0.408276 |
Questions people ask
- How many atmospheres are in a PSI?
- One PSI equals 0.0680459639 atmospheres.
- How do I convert PSI to atmospheres by hand?
- Multiply the number of PSI by 0.0680459639. For a rough check, 0.068 is close enough for most everyday use.
- What is 1 PSI in atmospheres?
- 1 PSI is 0.06804596 atmospheres.
Calcuit generates this page from a unit table, so the factors here match every other page on the site.