Atmospheres to Pounds per square inch converter

To convert atmospheres to pounds per square inch, enter the value in the first field. The result in pounds per square inch is calculated automatically using the exact conversion factor.

1 atm ≈ 14.6959487755 psi
1 psi ≈ 0.0680459639099 atm

Formula: psi ≈ atm × 14.6959487755
atm ≈ psi × 0.0680459639099

Definitions: 1 atm = 101325 Pa; 1 psi = 8896443230521/1290320000 Pa

The standard atmosphere (atm) is exactly 101,325 pascals, the average air pressure at sea level. It is a reference pressure in chemistry and physics and is used to express high pressures as multiples of atmospheric pressure.

The pound per square inch (psi) is the customary United States unit of pressure, one pound-force per square inch. It is used for tire pressure, air compressors and water and gas pressure in the United States, and for tires in the United Kingdom too.

See the conversion table with commonly used values, handy for quick reference or study.