Convert PSI to Atmospheres
Convert PSI to atmospheres instantly. Type a value below, check the formula and table, then see how the same psi to atm conversion looks as a single line in Notes Calculator.
PSI to Atmospheres formula
One pound per square inch is 0.068046 atmospheres, so atm = psi × 0.068046. For the reverse, multiply atmospheres by 14.6959, or use the Atmospheres to PSI converter.
PSI to Atmospheres conversion table
| PSI (psi) | Atmospheres (atm) |
|---|---|
| 1 | 0.068046 |
| 2 | 0.136092 |
| 5 | 0.34023 |
| 10 | 0.68046 |
| 20 | 1.36092 |
| 25 | 1.70115 |
| 50 | 3.4023 |
| 100 | 6.8046 |
| 250 | 17.0115 |
| 500 | 34.023 |
| 1,000 | 68.046 |
PSI to Atmospheres in Notes Calculator
Notes Calculator is a notepad that does math. Write 100 psi to atm on any line and the answer appears beside it. Change the number and the result follows. The same works with in and as, and with values stored in variables, so a whole estimate can mix PSI and atmospheres without a separate converter.
| Note | Result |
|---|---|
| 100 psi to atm | 6.80 atm |
| 100 psi in atm | 6.80 atm |
| 10 atm as psi | 146.96 psi |
See the unit conversion docs for mixing units in one expression, or open the free web app and try it.
FAQ
Frequently asked questions
- One pound per square inch equals 0.068046 atmospheres. To convert PSI to atmospheres, multiply by 0.068046; to go back, multiply by 14.6959.
- Type the value, the unit, and the target unit on one line: 100 psi to atm. The keywords to, in, and as all work, and the result updates as you type. You can also keep the value in a variable and convert it later.
- Yes. The converter on this page is free, and Notes Calculator has a free plan for the web, Mac, Windows, Linux, and Android with the same unit conversions built in.
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Convert PSI to atmospheres without leaving your notes.
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