Psi to Atmospheres Converter
Convert pound per square inch to atmosphere instantly. Type a value below — the result updates as you type.
When you need to convert pound per square inch to atmosphere
Pressure conversions are used for tyre inflation, weather readings, scuba and industrial gauges, and HVAC work, where gauges and manuals may be calibrated in different units.
Typical values: 0.5 psi is about 0.034 atm, and 100 psi works out to roughly 6.8046 atm. Because the ratio is fixed at 0.068, you can scale any amount linearly — doubling the psi doubles the atmospheres.
A single tyre or gauge spec is often printed in two or three pressure units side by side for international use.
How to convert pound per square inch to atmosphere
One pound per square inch equals 0.068 atmospheres. To convert, multiply the number of psi by 0.068:
atmospheres = psi × 0.068
For example, 10 psi × 0.068 = 0.6805 atmospheres.
Psi to atmospheres conversion table
| Pressure (psi) | Atmospheres (atm) |
|---|---|
| 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 |
| 50 psi | 3.4023 atm |
| 100 psi | 6.8046 atm |
FAQ
How many atmospheres are in a pound per square inch?
One pound per square inch = 0.068 atmospheres.
How do I convert atmospheres back to psi?
Divide by 0.068, or use the atmospheres to psi converter.