Convert PSI to Atmosphere
Convert PSI to Atmosphere instantly. 1 psi = 0.068046 atm. Formula, worked examples and a quick reference table.
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One psi equals 0.068046 atmosphere. To convert any number of psis to atmospheres, multiply by 0.06804596.
The converter above works in both directions and updates as you type. Below you will find the formula, a worked example and a reference table of common values.
PSI to Atmosphere formula
To go the other way, use psi = atmosphere ÷ 0.06804596.
About these units
Pounds per square inch remains the standard for tyre pressure in the US and UK, while most of the world uses bar or kilopascals.
PSI to Atmosphere conversion table
| PSI | Atmosphere |
|---|---|
| 1 psi | 0.068 atm |
| 2 psi | 0.1361 atm |
| 3 psi | 0.2041 atm |
| 5 psi | 0.3402 atm |
| 10 psi | 0.6805 atm |
| 20 psi | 1.3609 atm |
| 25 psi | 1.7011 atm |
| 50 psi | 3.4023 atm |
| 100 psi | 6.8046 atm |
| 250 psi | 17.0115 atm |
| 500 psi | 34.023 atm |
| 1,000 psi | 68.046 atm |
Frequently asked questions
How many atmospheres are in a psi? +
There are 0.068046 atmospheres in one psi.
What is 10 psi in atm? +
10 psi equals 0.6805 atm. Multiply 10 by 0.06804596.
How do I convert atmosphere back to psi? +
Use psi = atmosphere ÷ 0.06804596. The converter above handles both directions, or see our dedicated Atmosphere to PSI page.