Pascals to Pounds per Square Inch Converter

To convert a measurement in pascals to pounds per square inch, multiply the value by 0.000145037738. The conversion factor comes from the relationship between both units and the pascal.

For example, to convert 5 Pa to pounds per square inch: 5 × 0.000145037738 = 0.000725188689 psi.

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.

Pounds per square inch (psi) is an imperial unit of pressure equal to the force of one pound-force applied to an area of one square inch, or about 6,894.76 pascals. Rooted in the imperial system, psi remains the dominant pressure unit in the United States. It appears on tire gauges, air compressors, and hydraulic equipment throughout North America.

Common uses of pounds per square inch include: Tire pressure in the United States; Air compressors and pneumatic tools; Hydraulic system ratings; Plumbing and water pressure specifications.

Here are some common values converted:

1 Pa = 0.000145037738 psi 5 Pa = 0.000725188689 psi 10 Pa = 0.001450377377 psi 50 Pa = 0.007251886887 psi 100 Pa = 0.014503773773 psi