Pound per square inch to Atmosphere Converter
1 psi = 0.068046 atm — convert instantly with formula and table.
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Quick answer: one pound per square inch equals 0.068046 atmospheres. So to convert pounds per square inch to atmospheres, multiply by 0.06804596.
How to convert pounds per square inch to atmospheres
atmospheres = pounds per square inch × 0.0680459639
PSI is the imperial pressure unit of American tire gauges (32–35 psi for cars) and industrial equipment.
The standard atmosphere (101,325 Pa) represents average sea-level air pressure — the natural reference for diving depth and chemistry.
Pound per square inch to Atmosphere conversion table
| Pound per square inch (psi) | Atmosphere (atm) |
|---|---|
| 0.01 psi | 0.00068046 atm |
| 0.1 psi | 0.006805 atm |
| 0.25 psi | 0.017011 atm |
| 0.4 psi | 0.027218 atm |
| 0.75 psi | 0.051034 atm |
| 1.25 psi | 0.085057 atm |
| 1.75 psi | 0.11908 atm |
| 2.5 psi | 0.170115 atm |
| 3.5 psi | 0.238161 atm |
| 4.5 psi | 0.306207 atm |
| 6 psi | 0.408276 atm |
| 8 psi | 0.544368 atm |
| 10 psi | 0.68046 atm |
| 12 psi | 0.816552 atm |
| 14 psi | 0.952643 atm |
| 16 psi | 1.0887 atm |
| 18 psi | 1.2248 atm |
| 20 psi | 1.3609 atm |
| 24 psi | 1.6331 atm |
| 26 psi | 1.7692 atm |
| 30 psi | 2.0414 atm |
| 35 psi | 2.3816 atm |
| 45 psi | 3.0621 atm |
| 55 psi | 3.7425 atm |
| 65 psi | 4.423 atm |
| 75 psi | 5.1034 atm |
| 85 psi | 5.7839 atm |
| 95 psi | 6.4644 atm |
| 110 psi | 7.4851 atm |
| 125 psi | 8.5057 atm |
| 175 psi | 11.908 atm |
| 250 psi | 17.0115 atm |
| 350 psi | 23.8161 atm |
| 450 psi | 30.6207 atm |
| 600 psi | 40.8276 atm |
| 750 psi | 51.0345 atm |
| 900 psi | 61.2414 atm |
| 1,500 psi | 102.0689 atm |
| 2,500 psi | 170.1149 atm |
| 10,000 psi | 680.4596 atm |
Need the opposite direction? Use the Atmosphere to Pound per square inch converter, or read our complete guide to pressure conversions for every formula in one place.
Frequently asked questions
How many atmospheres are in one pound per square inch?
One pound per square inch equals 0.068046 atmospheres. Multiply any pound per square inch value by 0.06804596 to get atmospheres.
What is 10 pounds per square inch in atmospheres?
10 pounds per square inch equal 0.68046 atmospheres (10 × 0.068046).
Is the pound per square inch to atmosphere conversion exact?
The conversion factor used here (0.0680459639) is based on the internationally agreed definitions of both units, so results are exact up to rounding of the final decimal places.
Is my data stored when I use this converter?
No. The conversion runs entirely in your browser with JavaScript — nothing you type is sent to a server, logged or stored.