Atmospheres to PSI Converter
Atmospheres are the natural unit of pressure — one atm is the air pressing on you right now — used in diving, chemistry, and meteorology, while psi is the engineering unit of the English-speaking world. Converting atm to psi connects sea-level reality to gauges: 1 atm is 14.696 psi, and a 3-atm dive watch rating is 44 psi. Multiply atmospheres by 14.6959. The converter above works instantly both ways, the table spans surface pressure to deep dives, and the FAQs explain what an atmosphere actually is.
ATM to PSI Calculator
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Quick Reference Table
| Atmospheres (atm) | PSI (psi) |
|---|---|
| 1 | 14.6959 |
| 2 | 29.3919 |
| 3 | 44.0878 |
| 4 | 58.7838 |
| 5 | 73.4797 |
| 6 | 88.1757 |
| 7 | 102.8716 |
| 8 | 117.5676 |
| 9 | 132.2635 |
| 10 | 146.9595 |
| 2 | 29.3919 |
| 3 | 44.0878 |
| 5 | 73.4797 |
| 10 | 146.9595 |
Frequently Asked Questions
How many psi are in 1 atmospheres?
1 atmospheres = 14.6959 psi. Just apply the conversion to any value with the converter above.
What is the formula to convert atmospheres to psi?
To convert atmospheres to psi, multiply the number of atmospheres by 14.6959. In short: 1 atm = 14.6959 psi.
What is 1 atm in psi at sea level?
1 atm equals 14.6959 psi — the weight of the entire atmosphere on every square inch of you. It is defined as exactly 101,325 pascals. Enter 1 in the converter to verify.
How do I convert psi back to atmospheres?
Simply reverse the math: to go from psi to atmospheres, divide the psi by 14.695949.