Convert atmospheres 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
Common values, rounded for reading.
| Atmospheres (atm) | PSI (psi) |
|---|---|
| 1 | 14.6959 |
| 2 | 29.3919 |
| 3 | 44.0878 |
| 4 | 58.7838 |
| 5 | 73.4797 |
| 6 | 88.1757 |
| 7 | 102.87 |
| 8 | 117.57 |
| 9 | 132.26 |
| 10 | 146.96 |
| 15 | 220.44 |
| 20 | 293.92 |
| 25 | 367.4 |
| 30 | 440.88 |
| 40 | 587.84 |
| 50 | 734.8 |
| 75 | 1,102.2 |
| 100 | 1,469.59 |
| 250 | 3,673.99 |
| 500 | 7,347.97 |
| 1,000 | 14,695.95 |
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.