How to convert atmospheres to pounds per square inch
psi = atm × 14.69594878Multiply the value in atmospheres by 14.69594878. To go the other way, multiply by 0.06804596391 (or divide by 14.69594878).
A standard atmosphere is larger than a pound per square inch: one standard atmosphere contains 14.69594878 pounds per square inch.
Worked examples
- 1 standard atmosphere1 atm × 14.69594878 = 14.69594878 psi
- 5 atmospheres5 atm × 14.69594878 = 73.47974388 psi
- 10 atmospheres10 atm × 14.69594878 = 146.9594878 psi
- 20 atmospheres20 atm × 14.69594878 = 293.9189755 psi
- 100 atmospheres100 atm × 14.69594878 = 1,469.594878 psi
Atmospheres to pounds per square inch conversion table
Values are calculated by the conversion engine and rounded to 8 significant figures.
| Atmospheres (atm) | Pounds per square inch (psi) |
|---|---|
| 0.1 atm | 1.4695949 psi |
| 0.25 atm | 3.6739872 psi |
| 0.5 atm | 7.3479744 psi |
| 1 atm | 14.695949 psi |
| 2 atm | 29.391898 psi |
| 3 atm | 44.087846 psi |
| 4 atm | 58.783795 psi |
| 5 atm | 73.479744 psi |
| 6 atm | 88.175693 psi |
| 7 atm | 102.87164 psi |
| 8 atm | 117.56759 psi |
| 9 atm | 132.26354 psi |
| 10 atm | 146.95949 psi |
| Atmospheres (atm) | Pounds per square inch (psi) |
|---|---|
| 12 atm | 176.35139 psi |
| 15 atm | 220.43923 psi |
| 20 atm | 293.91898 psi |
| 25 atm | 367.39872 psi |
| 30 atm | 440.87846 psi |
| 40 atm | 587.83795 psi |
| 50 atm | 734.79744 psi |
| 75 atm | 1,102.1962 psi |
| 100 atm | 1,469.5949 psi |
| 250 atm | 3,673.9872 psi |
| 500 atm | 7,347.9744 psi |
| 1,000 atm | 14,695.949 psi |
About the units
Standard atmosphere (atm)
Exactly 101,325 Pa — average sea-level air pressure.
Pound per square inch (psi)
One pound-force per square inch, about 6,894.76 Pa. US tire, air-compressor and hydraulic pressures are given in psi. One pound per square inch equals 6,894.757293 pascals (Pa).
Frequently asked questions
How many pounds per square inch are in one standard atmosphere?
There are 14.69594878 pounds per square inch in one standard atmosphere, and this value is exact by definition.
How do I convert atmospheres to pounds per square inch?
Multiply the number of atmospheres by 14.69594878. For example, 10 atm × 14.69594878 = 146.9594878 psi.
How many atmospheres are in one pound per square inch?
One pound per square inch equals 0.06804596391 atmospheres. That is the reverse factor, 1 ÷ 14.69594878.
What is 10 atmospheres in pounds per square inch?
10 atm = 146.9594878 psi.
Is this atm to psi converter accurate?
Yes. Both units are defined exactly in terms of SI units, so the conversion factor is exact; results are shown to 12 significant figures by default and you can change precision in the converter. Calculations run in your browser using the same tested engine that generated this page.