Convert Atmospheres to Pounds per Square Inch
atm to psi · pressure conversion
What are atmospheres and pounds per square inch?
One atmosphere is the average air pressure at sea level, defined as 101,325 Pa. Pounds per square inch is the imperial pressure unit, standard for US tires and plumbing. For reference: car tires run around 32 psi (220 kPa), and sea-level air pressure is about 101 kPa.
How to convert atmospheres to pounds per square inch
1 atm = 14.6959 psi. To convert, multiply the number of atmospheres by 14.6959. For example, 5 atm = 73.4797 psi, and 20 atm = 293.919 psi. To go the other way, multiply pounds per square inch by 0.068046 (since 1 psi = 0.068046 atm).
Atmospheres to Pounds per Square Inch conversion table
| Atmospheres (atm) | Pounds per Square Inch (psi) |
|---|---|
| 1 | 14.6959 |
| 2 | 29.3919 |
| 5 | 73.4797 |
| 10 | 146.959 |
| 50 | 734.797 |
| 100 | 1,469.59 |
| 1,000 | 14,695.9 |
FAQ
What is 1 atm in psi?
1 atm = 14.6959 psi. To convert any amount, multiply the number of atmospheres by 14.6959.
How do I convert pounds per square inch back to atmospheres?
Go the other way: 1 psi = 0.068046 atm, so multiply pounds per square inch by 0.068046 to get atmospheres.
Is a atmosphere bigger than a pounds per square inch?
Yes — 1 atm is the larger unit, equal to 14.6959 psi.
Are these pressure conversions exact?
They use the standard internationally-defined conversion factors. Results are rounded to six significant figures for readability, which is accurate enough for everyday and most technical use.