Atmosphere to Pascal Converter

An atmosphere (atm) is a unit of pressure defined as exactly 101,325 pascals, representing the average atmospheric pressure at sea level. It serves as a reference pressure for many scientific and engineering applications.

The atmosphere was originally defined as the pressure exerted by the Earth's atmosphere at sea level. It became a standard reference pressure in chemistry and physics, providing a convenient baseline for pressure measurements and calculations.

Atmospheres are used in chemistry, physics, and engineering as a reference pressure. They're standard for gas law calculations, chemical reaction conditions, and scientific applications where atmospheric pressure serves as a convenient reference.

A pascal (Pa) is the SI unit of pressure, defined as one newton per square meter (N/m²). It represents the pressure exerted by a force of one newton uniformly distributed over an area of one square meter.

The pascal was named after French mathematician and physicist Blaise Pascal in 1971 and became the SI unit of pressure. It replaced various traditional pressure units and provided a unified measure based on fundamental SI units of force and area.

Pascals are universally used in scientific and engineering applications for pressure measurements. They're standard in physics, engineering calculations, materials science, and form the basis for all other pressure unit conversions in the SI system.