Pascal to PSI Converter
One Pascal equals 0.0001450377377 PSI (1 Pa = 0.0001450377377 psi). Multiply a Pascal value by 0.0001450377377 to get the equivalent in PSI. Use the calculator above for instant results, or follow the formula, worked examples, and reference table below.
Formula
psi = Pa × 0.0001450377377
Multiply the Pascal value by 0.0001450377377 to get the equivalent value in PSI.
Example Conversions
1 Pascal (Pa)
0.0001450377377 PSI (psi)
5 Pascal (Pa)
0.0007251886887 PSI (psi)
10 Pascal (Pa)
0.001450377377 PSI (psi)
25 Pascal (Pa)
0.003625943443 PSI (psi)
100 Pascal (Pa)
0.01450377377 PSI (psi)
Conversion Table
| Pascal (Pa) | PSI (psi) |
|---|---|
| 0.1 | 0.00001450377377 |
| 0.5 | 0.00007251886887 |
| 1 | 0.0001450377377 |
| 2 | 0.0002900754755 |
| 5 | 0.0007251886887 |
| 10 | 0.001450377377 |
| 25 | 0.003625943443 |
| 50 | 0.007251886887 |
| 100 | 0.01450377377 |
| 250 | 0.03625943443 |
| 500 | 0.07251886887 |
| 1000 | 0.1450377377 |
How to Convert Manually
Use these steps to convert Pascal values to PSI without the calculator.
- Write down the value in Pascal (Pa) that you want to convert.
- Multiply that value by 0.0001450377377.
- For example, 10 Pascal × 0.0001450377377 = 0.001450377377 PSI.
- Label the result as PSI (psi).
Relative Size Comparison
This chart shows the visual difference in size between exactly one Pascal and one PSI.
About Pascal and PSI
The pascal is the SI derived unit of pressure — one newton per square meter. It is small for everyday pressures, so kilopascals and hectopascals appear more often in practice. The pound per square inch is about 6,894.757 pascals. US tire pressures, water systems, and industrial equipment are rated in psi. One Pascal equals 0.0001450377377 PSI (1 Pa = 0.0001450377377 psi). Pascal to PSI conversion comes up most often in physics and engineering calculations and in acoustics and sound pressure, typically when figures need restating for US tire pressure.
Precision and Rounding: Several pressure factors are exact by definition (1 atm = 101,325 Pa; 1 bar = 100,000 Pa) while others, like psi and mmHg, are derived and carry long decimals. Tire and weather readings tolerate whole-number rounding; calibration, medicine, and process engineering need the full factor before rounding.
Conversion factors per NIST Special Publication 811 and the BIPM SI Brochure (9th edition) (reference).
Worked Example
15 Pascal equals 0.002175566066 PSI.
15 Pa × 0.0001450377377 = 0.002175566066 psi
FAQ
How do I convert Pascal to PSI?
Multiply the Pascal value by 0.0001450377377 to get the equivalent value in PSI.
What is the formula for Pascal to PSI?
The formula is psi = Pa × 0.0001450377377.
How many PSI are in 1 Pascal?
1 Pascal equals 0.0001450377377 PSI.
Can I convert PSI back to Pascal?
Yes. 1 PSI equals 6894.757293 Pascal, and the related converter can reverse the calculation.
What are common names for Pascal and PSI?
Pascal is shown as Pa and may also be searched as pascals, pa. PSI is shown as psi and may also be searched as pounds per square inch, lbf/in².
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