How many atmospheres are in 1 pound per square inch?

1 pound per square inch equals 0.068046 atm.

How do I convert atmospheres back to pounds per square inch?

Use the reverse converter: 1 atmosphere equals 14.6959 psi.

Yes. It uses the exact SI/NIST definitions of each unit and shows up to 6 significant digits.

To convert pounds per square inch to atmospheres, multiply the value by 0.0680459639.

atm = psi × 0.0680459639

40 psi × 0.0680459639 = 2.72 atm

Pound Per Square Inch (psi): Used for tyre and industrial pressure in the US. About 6,894.757 pascals.
Atmosphere (atm): Standard atmosphere: exactly 101,325 pascals, the average air pressure at sea level.

How do I convert pounds per square inch to atmospheres?: To convert pounds per square inch to atmospheres, multiply the value by 0.0680459639.
How many atmospheres are in 1 pound per square inch?: 1 pound per square inch equals 0.068046 atm.
How many atmospheres are in 10 pounds per square inch?: 10 psi equals 0.68046 atm.
How do I convert atmospheres back to pounds per square inch?: Use the reverse converter: 1 atmosphere equals 14.6959 psi.
Is this converter accurate?: Yes. It uses the exact SI/NIST definitions of each unit and shows up to 6 significant digits.