PSI to Atmosphere Converter (psi to atm)
1 psi = 0.068046 atmosphere. One standard atmosphere is 14.6959 psi, the average air pressure at sea level.
Result
30 psi = 2.0413797 atm
How to convert psi to atmosphere
One standard atmosphere is 14.6959 psi, the average air pressure at sea level. Diving, aviation and chemistry use atmospheres as a quick comparison to the pressure we live under.
Formula
atm = psi × 0.068046
Worked example
30 psi × 0.068046 = 2.04138 atm
PSI to Atmosphere quick-reference table
| PSI (psi) | Atmosphere (atm) |
|---|---|
| 5 psi | 0.34023 atm |
| 10 psi | 0.68046 atm |
| 14.7 psi | 1.00028 atm |
| 30 psi | 2.04138 atm |
| 100 psi | 6.8046 atm |
| 200 psi | 13.6092 atm |
Real-life examples
A 30 psi tyre is 2.04 atm, and a 100 psi compressor is 6.8 atm.
Frequently asked questions
How many psi is 1 atm?
One atmosphere is 14.6959 psi.
Is atm the same as bar?
Nearly. 1 atm is 1.01325 bar, about 1.3 percent more than 1 bar.
What is 1 psi in atmosphere?
1 psi = 0.068046 atmosphere (psi to atm).
What is the formula to convert psi to atm?
atm = psi × 0.068046. For example, 30 psi × 0.068046 = 2.04138 atm.
How do I convert atm back to psi?
Use the reverse converter: 1 atmosphere = 14.6959 psi. Check: 2.04138 atm converts back to 30 psi.
Reverse conversion
Need the other direction? Atmosphere to PSI converter (atm to psi): 1 atmosphere = 14.6959 psi.
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