1 psi
0.06805 atm
Psi to atm Converter (Pounds per Square Inch to Standard Atmospheres)
1 pound per square inch = 0.06804596391 standard atmospheres. To convert psi to atm, multiply by 0.06804596391, or divide by 14.69594878.
1 atm
14.6959 psi
10 psi
0.6805 atm
100 psi
6.8046 atm
How to convert psi to atm
1 pound per square inch equals 0.06804596391 standard atmospheres, so the conversion is a single multiplication.
atm = psi × 0.06804596391
Example: 150 psi × 0.06804596391 = 10.207 atm.
About the pound per square inch and the standard atmosphere
Pound per Square Inch (psi)
Pounds per square inch is the US unit for tire pressure, air compressors and hydraulics.
Standard Atmosphere (atm)
The standard atmosphere is defined as exactly 101,325 pascals, the average air pressure at sea level.
1 pound per square inch in every pressure unit
Bar0.06895 barKilopascals6.895 kPa
Pascals6,894.757 Pa
Standard Atmospheres0.06805 atmMegapascals0.006895 MPa
Millibars68.948 mbar
Millimeters of Mercury51.715 mmHg
Inches of Mercury2.036 inHg
Torr51.715 Torr
Technical Atmospheres0.07031 at
Ksi0.001 ksi
Inches of Water27.68 inH₂O
Related conversions
psi to atm FAQ
How many standard atmospheres are in a pound per square inch?
1 pound per square inch = 0.06804596391 standard atmospheres.
How many pounds per square inch are in a standard atmosphere?
1 standard atmosphere = 14.69594878 pounds per square inch.
How do I convert psi to atm?
Use atm = psi × 0.06804596391. For example, 10 psi = 0.6805 atm.
Can I print this psi to atm chart?
Yes. Use "Print / Save PDF" next to the converter for a one-page chart, or "Download CSV" to open it in Excel or Google Sheets.