Convert psi to atm
pounds per square inch to standard atmospheres. Enter a value to convert, or use the psi to atm chart further down the page.
1 pound per square inch equals 0.068046 standard atmospheres. Going the other way, 1 standard atmosphere = 14.6959 pounds per square inch.
How to convert psi to atm
To convert pounds per square inch to standard atmospheres, multiply the pound per square inch value by 0.06804596391. You can also divide by 14.69594878 to get the same answer.
atm = psi × 0.06804596391
Worked example
Convert 15 psi to standard atmospheres:
15 psi = 1.02069 atm
psi to atm conversion chart
Use this psi to atm table for quick reference without typing anything.
| pounds per square inch (psi) | standard atmospheres (atm) |
|---|---|
| 0.01 psi | 0.00068046 atm |
| 0.1 psi | 0.0068046 atm |
| 1 psi | 0.068046 atm |
| 2 psi | 0.136092 atm |
| 3 psi | 0.204138 atm |
| 5 psi | 0.34023 atm |
| 10 psi | 0.68046 atm |
| 20 psi | 1.36092 atm |
| 50 psi | 3.4023 atm |
| 100 psi | 6.8046 atm |
| 1,000 psi | 68.046 atm |
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.
What is a standard atmosphere?
The standard atmosphere is defined as exactly 101,325 pascals — the reference sea-level pressure.
Frequently asked questions
How many atm are in a pound per square inch?
1 psi equals 0.068046 atm. Going the other way, 1 atm is 14.6959 psi.
How do you convert psi to atm?
To convert pounds per square inch to standard atmospheres, multiply the pound per square inch value by 0.06804596391. You can also divide by 14.69594878 to get the same answer.
What is 10 psi in atm?
10 psi equals 0.68046 atm. The conversion chart on this page lists the other values people look up most often.
Related pressure conversions
Convert psi to other units
Convert other units to atm
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