Pascals to Atmospheres Converter

To convert a measurement in pascals to atmospheres, multiply the value by 0.000009869233. The conversion factor comes from the relationship between both units and the pascal.

For example, to convert 5 Pa to atmospheres: 5 × 0.000009869233 = 0.000049346163 atm.

A pascal is the SI derived unit of pressure, equal to one newton of force per square meter (1 N/m²). Named after the French mathematician and physicist Blaise Pascal, the unit was adopted by the International System of Units in 1971. It is a small unit, so everyday pressures are usually expressed in kilopascals or bars.

Common uses of pascals include: Scientific and engineering stress calculations; Meteorological reporting (via hectopascals); Material strength and tensile testing; Fluid mechanics and aerodynamics.

A standard atmosphere (atm) is a unit of pressure defined as exactly 101,325 pascals, approximating average sea-level air pressure. Defined by the International Union of Pure and Applied Chemistry as a reference pressure, the atmosphere is widely used in chemistry and physics to describe conditions relative to sea level.

Common uses of atmospheres include: Chemistry reference conditions (STP); Diving and hyperbaric medicine; Physics gas-law calculations; Describing high-pressure environments.

Here are some common values converted:

1 Pa = 0.000009869233 atm 5 Pa = 0.000049346163 atm 10 Pa = 0.000098692327 atm 50 Pa = 0.000493461633 atm 100 Pa = 0.000986923267 atm