Atmosphere to Pounds per Square Inch Pressure Converter
Convert Atmosphere (atm) to PSI (psi) with this free calculator. Type a value, press Convert, and the page applies the same factor shown in the formula below — no rounded shortcut, and nothing is stored on a server.
PSI to Atmosphere (psi to atm) ►
How to convert Atmosphere to Pounds per Square Inch
1 atm = 101,325 Pa
1 psi = 1 lbfin2
1 atmosphere (atm) is equal to 14.69595 psi (psi).
psi = atm × 14.69595
Multiply the pressure in atmospheres by 14.69595:
Example: Convert 1 atm to psi:
psi = 1 × 14.69595 = 14.6959 psi
What is a Atmosphere?
The Atmosphere (atm) is the starting or target unit on this page. Use the calculator above to convert values without looking up the factor by hand.
What is a PSI?
The PSI (psi) is the starting or target unit on this page. Use the calculator above to convert values without looking up the factor by hand.
This page converts pressure from Atmosphere into PSI. One atm equals 14.695948776 psi.
Atmosphere to PSI conversion table
Common atm values and the matching psi result, calculated with the same factor as the widget. Highlight a nearby row if you want a quick check without entering a number.
| Atmosphere (atm) | PSI (psi) |
|---|---|
| 0.5 atm | 7.347974388 psi |
| 1 atm | 14.695948776 psi |
| 2 atm | 29.391897552 psi |
| 5 atm | 73.479743879 psi |
| 10 atm | 146.959487759 psi |
| 100 atm | 1469.594877587 psi |
How this calculator works
The form on this page is a Atmosphere-to-PSI converter. After you enter a number, JavaScript multiplies or rearranges it with the published conversion factor and writes the psi result in the output box. The step-by-step panel repeats the arithmetic so you can copy it into homework or a spreadsheet.
Reviewed by Hamsen, founder of GigaTables and a biology engineer. See the about page for how formulas are checked before a tool is published.
FAQ
How many psi are in 1 atm?
1 atm = 14.695948776 psi.
How do I convert Atmosphere to PSI?
Multiply the pressure in atmospheres by 14.69595:
Is this atm to psi converter free?
Yes. GigaTables calculators are free to use in a browser. You do not need an account, and the values you type are not uploaded.