Standard atmospheres to Pounds per square inch formula
pounds per square inch = standard atmospheres × 14.6959
Multiply the number of standard atmospheres by 14.6959 to get pounds per square inch. To go the other way, multiply by 0.068046 instead, or use the psi to atm converter.
Standard atmospheres to Pounds per square inch conversion table
Common atm to psi values, rounded for reading. The converter above keeps full precision.
| Standard atmospheres | Pounds per square inch |
|---|---|
| 1 atm | 14.6959 psi |
| 2 atm | 29.3919 psi |
| 3 atm | 44.0878 psi |
| 4 atm | 58.7838 psi |
| 5 atm | 73.4797 psi |
| 10 atm | 146.959 psi |
| 15 atm | 220.439 psi |
| 20 atm | 293.919 psi |
| 25 atm | 367.399 psi |
| 50 atm | 734.797 psi |
| 75 atm | 1,102.2 psi |
| 100 atm | 1,469.59 psi |
| 250 atm | 3,673.99 psi |
| 500 atm | 7,347.97 psi |
| 1,000 atm | 14,695.9 psi |
Worked example
To convert 10 atm to pounds per square inch, multiply by 14.6959: the result is 146.959 psi. This converts pressure units only. Gauge pressure and absolute pressure need the same reference before comparison.
Frequently asked questions
How many pounds per square inch are in a standard atmosphere?
One standard atmosphere equals 14.6959 pounds per square inch (1 atm = 14.6959 psi).
What is 10 standard atmospheres in pounds per square inch?
10 atm converts to 146.959 psi. Enter any other value in the converter above to see it recalculated instantly.
How do I convert pounds per square inch back to standard atmospheres?
Reverse the calculation: one pound per square inch equals 0.068046 standard atmospheres. You can also swap the units in the converter or open the psi to atm page.
Related pressure conversions
Need a different pair? Open the full pressure converter to choose any two units.