Pascals to PSI Converter
Enter the pressure in pascals below to convert it to psi.
Convert Pascals to PSI
Enter a value in pascals (Pa) to convert to psi (psi).
Pascal to Pounds per Square Inch Conversion Table
Table showing various pascal measurements converted to psi. Click any preset value or arrow to load it into the converter.
| Pascals (Pa) | PSI (psi) |
|---|---|
| 1 Pa | 0.000145038 psi |
| 2 Pa | 0.000290075 psi |
| 5 Pa | 0.000725189 psi |
| 10 Pa | 0.0014504 psi |
| 15 Pa | 0.0021756 psi |
| 20 Pa | 0.0029008 psi |
| 25 Pa | 0.0036259 psi |
| 30 Pa | 0.0043511 psi |
| 50 Pa | 0.0072519 psi |
| 75 Pa | 0.0108778 psi |
How to Convert Pascals to PSI
To convert pascals to psi, multiply the pressure by the following conversion ratio: 0.000145038 psi/pascal.
Since one pascal is equal to 0.000145038 psi, you can use this simple formula to convert:
The pressure in psi is equal to the pressure in pascals multiplied by 0.000145038.
For example, here's how to convert 100000 pascals to psi using the formula above.
How Many PSI Are in a Pascal?
There are 0.000145038 psi in a pascal, which is why we use this value in the formula above.
Our pascal to pounds per square inch calculator automatically converts your pressure measurements with full decimal and scientific precision across US customary, imperial, and SI metric standards.
Pascals and psi are both units used to measure pressure. Keep reading to learn more about each unit.
What Is a Pascal?
SI derived unit of pressure equal to 1 Newton per square meter (N/m²). It serves as a primary reference unit for measuring pressure across scientific and practical applications. [1]
The pascal is classified as an International System of Units (SI) unit of pressure. Pascals can be abbreviated as Pa; for example, 1 pascal can be written as 1 Pa.
As the primary coherent reference unit for pressure in this category, all other pressure units are mathematically anchored to the pascal (Pa).
In practice, pascals (Pa) are widely used across standard pressure applications within International System of Units (SI) workflows, engineering documentation, and technical data sheets.
What Is a Pounds per Square Inch?
A pounds per square inch is a unit of pressure equal to 6,894.7572932 pascals (Pa), the base unit for pressure. Imperial & US pressure unit equal to 1 pound-force per square inch (6.89476 kPa). [2]
The pounds per square inch is classified as a US customary and imperial unit of pressure. PSI can be abbreviated as psi; for example, 1 pounds per square inch can be written as 1 psi.
When working with psi (psi) in formulas or technical specifications, always verify whether your target system uses SI metric, US customary, or British imperial standards.
In practice, psi (psi) are widely used across large-scale industrial, bulk, and macro-level pressure specifications within US customary and imperial workflows, engineering documentation, and technical data sheets.
When converting pressure between pascals (Pa) and psi (psi), keep full floating-point precision (1 Pa = 0.000145038 psi; 1 psi = 6,894.7572932 Pa) during intermediate calculations and round only the final pounds per square inch figure to match your instrument tolerance.
More Pascal & Pounds per Square Inch Conversions
Need to calculate in the opposite direction? Use our psi to pascals calculator to switch your starting unit immediately. You can also explore related tools such as converting psi to pascals, converting bars to psi, or converting kilopascals to psi.
Frequently Asked Questions
References
- [1]NIST SP 811 StandardNIST SP 811 (NIST SP 811 App. B.9 (Pressure & Stress))·Pressure Metrology Standard — Pascals (Pa) to PSI (psi)
- [2]NIST CUU SpecificationNIST CUU (Derived SI Unit: Pascal (Pa))·Unit Specifications: Pascal (Pa) & Pounds per Square Inch (psi)
- [3]BIPM ReferenceBIPM (SI Brochure (9th Ed.) — Mechanics)·Conversion Factors & Mathematical Basis (Pa to psi)