Home› Conversions› Pressure› Pascals to Psi
Pressure
Pascals to Psi
Convert pascals (Pa) to psi (psi). Type a value below to see the result update instantly. Reference table and formula included.
Calculator
1 Pa = 0.000145 psi
Pascals to Psi Conversion Table
Common values, ready to copy:
| pascals | psi |
|---|---|
| 1 Pa | 0.000145 psi |
| 2 Pa | 0.00029 psi |
| 5 Pa | 0.000725 psi |
| 10 Pa | 0.00145 psi |
| 25 Pa | 0.003626 psi |
| 50 Pa | 0.007252 psi |
| 100 Pa | 0.014504 psi |
| 1,000 Pa | 0.145038 psi |
Formula
psi = pascals × 1.45037681e-4
Pressure is force per area. 1 atm = 101.325 kPa = 14.696 psi = 760 mmHg. Bar is a metric working unit close to atmospheric pressure (1 bar = 100 kPa).
About Pascals and Psi
Pascals (Pa): The SI unit of pressure, defined as one newton per square meter; named for Blaise Pascal, who established fundamental principles of fluid pressure in the 17th century. Common uses: Scientific work, weather (atmospheric pressure in hectopascals or kilopascals), and engineering specifications.
Psi (psi): Pounds-force per square inch, the customary US pressure unit; 1 psi = 6,894.76 Pa. Common uses: US tire pressure (car tires typically 30-35 psi), US gas grills (10-12 psi propane), industrial hydraulics in the US, and US plumbing pressure specifications.
How the conversion works
Pressure is force per area. 1 atm = 101.325 kPa = 14.696 psi = 760 mmHg. Bar is a metric working unit close to atmospheric pressure (1 bar = 100 kPa).
The exact relationship is psi = pascals × 1.45037681e-4, which the calculator at the top of this page applies in both directions. Type into either field and the other updates immediately.
When this conversion matters
Converting between pascals and psi comes up wherever pressure measurements move between systems — from one country's conventions to another's, from a scientific reference to a practical specification, or from one industry's working unit to another's. The calculator and reference table above cover the everyday range; for unusual values you can type any number into either field.