Convert atm to psi
standard atmospheres to pounds per square inch. Enter a value to convert, or use the atm to psi chart further down the page.
1 standard atmosphere equals 14.6959 pounds per square inch. Going the other way, 1 pound per square inch = 0.068046 standard atmospheres.
How to convert atm to psi
To convert standard atmospheres to pounds per square inch, multiply the standard atmosphere value by 14.69594878. You can also divide by 0.06804596391 to get the same answer.
psi = atm × 14.69594878
Worked example
Convert 15 atm to pounds per square inch:
15 atm = 220.439 psi
atm to psi conversion chart
Use this atm to psi table for quick reference without typing anything.
| standard atmospheres (atm) | pounds per square inch (psi) |
|---|---|
| 0.01 atm | 0.146959 psi |
| 0.1 atm | 1.46959 psi |
| 1 atm | 14.6959 psi |
| 2 atm | 29.3919 psi |
| 3 atm | 44.0878 psi |
| 5 atm | 73.4797 psi |
| 10 atm | 146.959 psi |
| 20 atm | 293.919 psi |
| 50 atm | 734.797 psi |
| 100 atm | 1,469.59 psi |
| 1,000 atm | 14,695.9 psi |
What is a standard atmosphere?
The standard atmosphere is defined as exactly 101,325 pascals — the reference sea-level pressure.
What is a pound per square inch?
One psi is one pound-force per square inch, about 6,894.76 pascals. It is the standard pressure unit for tyres and hydraulics in the US.
Frequently asked questions
How many psi are in a standard atmosphere?
1 atm equals 14.6959 psi. Going the other way, 1 psi is 0.068046 atm.
How do you convert atm to psi?
To convert standard atmospheres to pounds per square inch, multiply the standard atmosphere value by 14.69594878. You can also divide by 0.06804596391 to get the same answer.
What is 10 atm in psi?
10 atm equals 146.959 psi. The conversion chart on this page lists the other values people look up most often.
Related pressure conversions
Convert atm to other units
Convert other units to psi
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