1 atmosphere to PSI
1 atm = 14.695949 psi. Change the amount below, or read the formula and the reference table further down.
1 atmosphere equals
PSI
1 atm = 14.695949 psi
The formula
Atmospheres and PSI both measure pressure from the same zero, so a single multiplier does the job.
psi = atm × 14.69594878
Going the other way? Convert PSI to atmospheres.
Atmospheres to PSI table
Values either side of 1 atm.
| Atmospheres (atm) | PSI (psi) |
|---|---|
| -4 | -58.7838 |
| -3.5 | -51.4358 |
| -3 | -44.0878 |
| -2.5 | -36.7399 |
| -2 | -29.3919 |
| -1.5 | -22.0439 |
| -1 | -14.6959 |
| -0.5 | -7.348 |
| 0 | 0 |
| 0.5 | 7.348 |
| 1 | 14.6959 |
| 1.5 | 22.0439 |
| 2 | 29.3919 |
| 2.5 | 36.7399 |
| 3 | 44.0878 |
| 3.5 | 51.4358 |
| 4 | 58.7838 |
| 4.5 | 66.1318 |
| 5 | 73.4797 |
| 5.5 | 80.8277 |
| 6 | 88.1757 |
Questions people ask
- How many PSI are in a atmosphere?
- One atmosphere equals 14.69594878 PSI.
- How do I convert atmospheres to PSI by hand?
- Multiply the number of atmospheres by 14.69594878. For a rough check, 14.7 is close enough for most everyday use.
- What is 1 atmosphere in PSI?
- 1 atmosphere is 14.695949 PSI.
Calcuit generates this page from a unit table, so the factors here match every other page on the site.