How many pounds per square inch are in a atmosphere?

1 atm = 14.6959 psi. To convert any amount, multiply by 14.6959.

How do you convert atmospheres to pounds per square inch?

Multiply the number of atmospheres by 14.6959 to get pounds per square inch. The formula is shown in the "How it's calculated" section above.

Where does the conversion factor come from?

It's a published international standard. Most are defined exactly by international agreement (e.g. 1 inch = 25.4 mm exactly, 1 lb = 0.45359237 kg exactly). Source citations are listed under the formula above.

Unit converter — Pressure

Atmospheres to pounds per square inch converter

Convert atmospheres (atm) to pounds per square inch (psi). Source-cited conversion factor, exact to the displayed precision.

Results are mathematically exact for the displayed precision. How we calculate.

How it's calculated

Convert atmospheres to pounds per square inch— the formula

Atmospheres convert to pounds per square inch by multiplying by the published conversion factor. The factor below is exact to the precision shown, sourced from the citation under the formula.

psi = atm × 14.6959

atm = psi × 0.068046

Pascal: SI derived. 1 bar = 100,000 Pa exactly; 1 psi = 6894.757293168 Pa; 1 atm = 101,325 Pa exactly; 1 mmHg (Torr) = 133.322387415 Pa (NIST SP 811).

Questions

Frequently asked questions

How many pounds per square inch are in a atmosphere?
1 atm = 14.6959 psi. To convert any amount, multiply by 14.6959.
How do you convert atmospheres to pounds per square inch?
Multiply the number of atmospheres by 14.6959 to get pounds per square inch. The formula is shown in the "How it's calculated" section above.
Where does the conversion factor come from?
It's a published international standard. Most are defined exactly by international agreement (e.g. 1 inch = 25.4 mm exactly, 1 lb = 0.45359237 kg exactly). Source citations are listed under the formula above.