Kilopascals to Pounds per Square Inch Converter

To convert a measurement in kilopascals to pounds per square inch, multiply the value by 0.14503773773. The conversion factor comes from the relationship between both units and the pascal.

For example, to convert 5 kPa to pounds per square inch: 5 × 0.14503773773 = 0.725188688651 psi.

A kilopascal equals 1,000 pascals and is the most common metric unit for everyday pressures such as tire inflation. The kilopascal became widespread as metric countries standardized on SI units, replacing older units like the kilogram-force per square centimeter in engineering and automotive specifications.

Common uses of kilopascals include: Tire pressure in metric countries; Blood pressure in some clinical contexts; HVAC and building pressure specifications; Compressed air and pneumatic systems.

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.

Metric vehicle manuals and building codes list pressures in kilopascals, but US tools and gauges read in psi. Converting a 220 kPa tire recommendation to about 32 psi lets you inflate correctly with an American gauge, and HVAC technicians convert duct pressures the same way.

Here are some common values converted:

1 kPa = 0.14503773773 psi 5 kPa = 0.725188688651 psi 10 kPa = 1.450377 psi 50 kPa = 7.251887 psi 100 kPa = 14.503774 psi