Pascal to PSI Converter

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.

Pounds per square inch (psi) is a unit of pressure representing the pressure exerted by one pound-force applied to an area of one square inch. It's widely used in the United States for various pressure applications.

PSI developed with the imperial system and became standard in American engineering and industry. It provided an intuitive pressure unit based on familiar force and area measurements, becoming deeply embedded in US industrial and automotive applications.

PSI is extensively used in the United States for tire pressure, hydraulic systems, pneumatic tools, and industrial applications. It's standard for automotive tire specifications, air compressor ratings, and hydraulic system pressures in American industry.