Pascals to PSI Converter
Pa → psi · 🔬 Pressure
1 Pascals = 0.00014503768 PSI
How to convert Pascals to PSI
To convert Pascals to PSI, multiply the value in Pascals by 0.00014503768. For example, 5 Pa = 0.0007251884 psi.
Converting Pascals (Pa) to PSI (psi) is a frequent need, and the exact relationship is 1 Pa = 0.00014503768 psi. Whether you're working on a project, checking a specification, or just curious, the calculator above gives you the answer instantly for any value you enter.
Pressure conversions are used in weather forecasting, engineering, diving, automotive maintenance, and industrial processes. Different fields favor different units, making conversion a regular necessity.
Understanding Pascals and PSI
The pascal is the SI unit, but it's small, so kilopascals and bars are more practical for everyday use. PSI (pounds per square inch) dominates in US engineering and tire pressures, while atmospheres provide an intuitive reference point — 1 atm is roughly the air pressure at sea level. Weather reports use hectopascals or millibars, which are numerically identical.
How accurate is this conversion?
Pressure conversions are based on fixed physical definitions. One standard atmosphere equals exactly 101,325 pascals, and 1 bar equals exactly 100,000 pascals, so all conversions here are precise.
All conversion factors on ClearUnits are based on internationally recognised standards (the International System of Units, SI, and official definitions). Factors are reviewed for accuracy and the calculator uses full-precision values, rounding only the displayed result.
Quick reference: common Pascals to PSI values
The most frequently searched conversions are 1 Pascals = 0.00014503768 PSI, 5 Pascals = 0.0007251884 PSI, 10 Pascals = 0.0014503768 PSI, and 100 Pascals = 0.014503768 PSI. The full table further down covers every common value, and the calculator handles any number you need in between.
Pro tip: For tire pressure, most vehicles specify PSI in the US and bar or kPa elsewhere. As a rule of thumb, 1 bar ≈ 14.5 PSI, so a typical 2.2 bar tire pressure is about 32 PSI.
Pascals to PSI — Conversion Table
| Pascals (Pa) | PSI (psi) |
|---|---|
| 0.1 Pa | 0.000014503768 psi |
| 0.25 Pa | 0.00003625942 psi |
| 0.5 Pa | 0.00007251884 psi |
| 1 Pa | 0.00014503768 psi |
| 2 Pa | 0.00029007536 psi |
| 5 Pa | 0.0007251884 psi |
| 10 Pa | 0.0014503768 psi |
| 25 Pa | 0.003625942 psi |
| 50 Pa | 0.007251884 psi |
| 100 Pa | 0.014503768 psi |
| 250 Pa | 0.03625942 psi |
| 500 Pa | 0.07251884 psi |
| 1000 Pa | 0.14503768 psi |