Convert Atmosphere to Pound per square inch

One atm equals 14.69594878 psi. This converter allows you to easily convert between Atmosphere and Pound per square inch in real time.

Formula

atm × 14.69594878 = psi

Example: 1 atm = 14.69594878 psi

What is Atmosphere?

The standard atmosphere is a unit of pressure defined as exactly 101,325 pascals. It approximates the average atmospheric pressure at sea level on Earth. In diving, pressure increases by roughly 1 atm for every 10 meters of water depth, so at 30 meters the total pressure is about 4 atm. In chemistry, standard conditions for gases are defined at 0 degrees Celsius and 1 atm, making it a fundamental reference in thermodynamics and gas law calculations.

What is Pound per square inch?

The pound per square inch is a unit of pressure expressing force in pounds-force applied to an area of one square inch. It is widely used in the United States and United Kingdom. Car tire pressure in the US is typically 30 to 35 psi, and industrial compressed air systems commonly operate at 90 to 150 psi. Fire sprinkler systems, natural gas pipelines, and hydraulic tools all use psi ratings. One psi equals approximately 6,895 pascals.