One psi is about 6,894.76 Pa. Small pressure differences in ducts, filters and sensors are measured in pascals but sometimes need to be shown in psi.
How to use the Pascals to PSI Converter
- Type the number of pascals into the Pascals field. Decimals such as 3,447.38 are fine.
- Read the answer in Psi – it updates as you type, with no button to press.
- To convert the other way, type into Psi and the pascals are recalculated.
- Press Copy results to copy both values with the page title, or Copy link to share this exact conversion.
This page converts only Pa ⇄ psi. Need a different unit? Use the general pressure converter, where you can choose any “from” and “to” unit.
How it works
Both units measure pressure, so they are always in the same ratio: one pascal equals 0.00014503774 psi. The calculator multiplies the number of pascals you type by 0.00014503774 to give psi, and when you type into the psi field it divides by the same factor to give pascals. Because the ratio never changes, doubling the pascals always doubles the psi. Results are calculated at full precision and rounded only for display (up to eight decimal places, with very large or small values shown in scientific notation).
How to convert pascals to psi
- Write down the value in pascals, for example 6,894.76 Pa.
- Multiply by the conversion factor 0.00014503774 (because 1 pascal = 0.00014503774 psi).
- 6,894.76 × 0.00014503774 = 1.0000004 psi.
- To go back from psi to pascals, divide by 0.00014503774 – or multiply by 6,894.7573.
Pa to psi conversion table
| Pascals | Psi | Psi | Pascals |
|---|---|---|---|
| 1 Pa | 0.00014503774 psi | 1 psi | 6,894.7573 Pa |
| 10 Pa | 0.0014503774 psi | 2 psi | 13,789.515 Pa |
| 100 Pa | 0.014503774 psi | 5 psi | 34,473.786 Pa |
| 1,000 Pa | 0.14503774 psi | 10 psi | 68,947.573 Pa |
| 6,894.76 Pa | 1.0000004 psi | 20 psi | 137,895.15 Pa |
| 10,000 Pa | 1.4503774 psi | 50 psi | 344,737.86 Pa |
| 100,000 Pa | 14.503774 psi | 100 psi | 689,475.73 Pa |
| 1,000,000 Pa | 145.03774 psi | 1,000 psi | 6,894,757.3 Pa |
What is a pascal?
The pascal is the SI unit of pressure: one newton per square metre. It is small, so kilopascals and megapascals are used in practice.
What is a pound per square inch?
Pounds per square inch is the pressure of one pound-force on one square inch, about 6,895 Pa. U.S. tyre gauges, compressors and hydraulic equipment read psi.
Quick mental conversion
For a fast estimate, multiply pascals by about 0.00015 to get psi; the error is about 3.4%. Use the calculator above when you need the exact figure.
Common mistakes to avoid
Mixing gauge pressure (psig, barg) with absolute pressure (psia, bara), treating bar and atm as identical, and confusing kgf/cm² with bar.
Formula
1 Pa = 0.00014503774 psi1 psi = 6,894.7573 Papsi = Pa × 0.00014503774Worked example
Inputs — Pascals: 6,894.76 Pa.
Results — Psi = 1.00000039 psi.
Frequently asked questions
How many Pa in a psi?
About 6,894.76 Pa.
How many psi is 100,000 Pa?
About 14.5 psi.
How do I convert pascals to psi?
Multiply the number of pascals by 0.00014503774. For example, 6,894.76 Pa × 0.00014503774 = 1.0000004 psi.
How do I convert psi back to pascals?
Divide by 0.00014503774 (or multiply by 6,894.7573), or simply type the value into the psi field above.
What is 10 Pa in psi?
10 Pa = 0.0014503774 psi.
What is 100 Pa in psi?
100 Pa = 0.014503774 psi.
Is this conversion exact?
Yes. The factor comes from the official definitions of both units (NIST and the SI), so the only difference you may see is rounding in the last displayed digit.
Can I convert to other units on this page?
This page converts only between pascals and psi. To pick any pressure unit, use the general pressure converter linked under Related calculators.
What formula does the Pascals to PSI Converter use?
1 Pa = 0.00014503774 psi.