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Convert atmospheres to psi instantly. Enter a value below, or use the formula and reference table further down the page.
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How to convert atmospheres to psi
Multiply the value by 14.6959488.
psi = atm × 14.6959488Example: 10 atm = 146.9595 psi.
Atmospheres to PSI conversion table
| Atmospheres (atm) | PSI (psi) |
|---|---|
| 1 atm | 14.6959 psi |
| 2 atm | 29.3919 psi |
| 3 atm | 44.0878 psi |
| 4 atm | 58.7838 psi |
| 5 atm | 73.4797 psi |
| 10 atm | 146.9595 psi |
| 15 atm | 220.4392 psi |
| 20 atm | 293.919 psi |
| 25 atm | 367.3987 psi |
| 50 atm | 734.7974 psi |
| 100 atm | 1469.5949 psi |
Frequently asked questions
How many psi is 1 atmosphere?
1 atmosphere equals 14.6959 psi.
What is the formula to convert atm to psi?
To convert atm to psi, multiply the value by 14.6959488. The full formula is: psi = atm × 14.6959488.
How do I convert psi back to atmospheres?
Use the same calculator above and type your value into the psi field instead — it converts in both directions. Or use the reverse formula: atm = psi ÷ 14.6959488.
Is the atm to psi conversion exact?
The conversion factor used here (14.6959488) is the standard internationally defined value. Results on this page are rounded to four decimal places for readability.