Pascal to Psi Converter
Enter the value that you want to convert pascal (Pa) to psi or psi to pascal.
1 pascal = 0.0001450 psi
Formula: psi = pascal value × 0.0001450
pascal to psi
10 pascal = 0.00145 psi
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Why Convert Pascal to Psi?
About the Pascal
Pascal (Pa) is a unit of pressure measurement. 1 pascal is equal to 0.0001450 psi.
What is Psi?
Psi (psi) is a unit of pressure measurement. 1 psi is equal to 6894.7572932 pascal.
Pressure Units Across Industries
Pressure measurements vary dramatically by industry. Meteorologists report in millibars or hectopascals, tire shops use PSI, scuba divers think in atmospheres or bar, vacuum engineers work in torr, and hydraulic systems specify in megapascals. A single industrial plant might encounter all these units across different equipment manuals, safety datasheets, and regulatory standards from different countries.
pascal to psi metric conversion table
| 0.01 Pa | = | 0.00000 psi |
| 0.1 Pa | = | 0.00001 psi |
| 1 Pa | = | 0.00015 psi |
| 2 Pa | = | 0.00029 psi |
| 3 Pa | = | 0.00044 psi |
| 4 Pa | = | 0.00058 psi |
| 5 Pa | = | 0.00073 psi |
| 6 Pa | = | 0.00087 psi |
| 7 Pa | = | 0.00102 psi |
| 8 Pa | = | 0.00116 psi |
| 9 Pa | = | 0.00131 psi |
| 10 Pa | = | 0.00145 psi |
| 11 Pa | = | 0.00160 psi |
| 12 Pa | = | 0.00174 psi |
| 13 Pa | = | 0.00189 psi |
| 14 Pa | = | 0.00203 psi |
| 15 Pa | = | 0.00218 psi |
| 16 Pa | = | 0.00232 psi |
| 17 Pa | = | 0.00247 psi |
| 18 Pa | = | 0.00261 psi |
| 19 Pa | = | 0.00276 psi |
| 20 Pa | = | 0.00290 psi |
| 30 Pa | = | 0.00435 psi |
| 40 Pa | = | 0.00580 psi |
| 50 Pa | = | 0.00725 psi |
| 60 Pa | = | 0.00870 psi |
| 70 Pa | = | 0.01015 psi |
| 80 Pa | = | 0.01160 psi |
| 90 Pa | = | 0.01305 psi |
| 100 Pa | = | 0.01450 psi |
| 200 Pa | = | 0.02901 psi |
| 300 Pa | = | 0.04351 psi |
| 400 Pa | = | 0.05802 psi |
| 500 Pa | = | 0.07252 psi |
| 600 Pa | = | 0.08702 psi |
| 700 Pa | = | 0.10153 psi |
| 800 Pa | = | 0.11603 psi |
| 900 Pa | = | 0.13053 psi |
| 1000 Pa | = | 0.14504 psi |
How to Convert Pascal to Psi?
We can convert pascal to psi by using an example.
Example:
Convert 20 Pascal to Psi?
We know 1 Pascal = 0.0001450 psi; 1 Psi = 6894.7572932 pascal.
20 pascal = ___psi
20 × 0.0001450 = 0.00290 psi (we know 1 pascal = 0.0001450 psi)
Answer:
20 pascal = 0.00290 psi
How to Convert Pascal to PSI (Step-by-Step)
Converting pascals to PSI is needed when translating computational simulation results (CFD, FEA) into US engineering specifications. The conversion factor is 1 Pa = 0.000145038 PSI.
- Write down the pressure value in pascals (Pa).
- Multiply by 0.000145038 (or divide by 6894.76).
- The result is the equivalent pressure in PSI.
- For values in kPa, multiply by 0.145038 instead.
Common Pascal to PSI Conversions
Simulation outputs and scientific measurements converted to PSI for American engineering specifications.
| Pascal | Psi |
|---|---|
| 1,000 Pa | 0.145 PSI |
| 6,895 Pa | 1.0 PSI |
| 10,000 Pa | 1.45 PSI |
| 50,000 Pa | 7.25 PSI |
| 101,325 Pa | 14.696 PSI |
| 200,000 Pa | 29.0 PSI |
| 500,000 Pa | 72.5 PSI |
| 10,000,000 Pa | 1,450 PSI |
Solved Examples: Pascal to PSI
Question 1: A CFD simulation shows maximum surface pressure of 85,000 Pa on an aircraft wing. Convert to PSI for the US design team.
Solution:
Pressure in PSI = 85,000 × 0.000145038
= 12.33 PSI
Answer: 85,000 Pa = 12.33 PSI — below atmospheric, indicating the simulation reports gauge pressure (suction on upper surface).
Question 2: An FEA stress analysis shows peak von Mises stress of 248,000,000 Pa in a bracket. Express in PSI.
Solution:
Stress in PSI = 248,000,000 × 0.000145038
= 35,969 PSI ≈ 36,000 PSI
Answer: 248 MPa = 36,000 PSI = 36 ksi — at the yield strength of A36 steel (redesign needed!).
Question 3: OpenFOAM outputs pipe pressure drop as 34,474 Pa. Convert for a US plumbing specification.
Solution:
Pressure in PSI = 34,474 ÷ 6894.76
= 5.0 PSI
Answer: 34,474 Pa = 5.0 PSI pressure drop — acceptable for most residential plumbing (max 5 PSI per 100 ft is typical).
Question 4: A turbine inlet pressure from a thermodynamic simulation is 3,500,000 Pa. Convert to PSI.
Solution:
Pressure in PSI = 3,500,000 × 0.000145038
= 507.6 PSI
Answer: 3,500,000 Pa (3.5 MPa) = 507.6 PSI — typical industrial steam turbine inlet.
Practice Questions: Pascal to PSI
Try solving these on your own to test your understanding:
- Convert 250,000 Pa to PSI. (Answer: 36.3 PSI)
- A simulation shows 1,500,000 Pa stress. Express in PSI. (Answer: 217.6 PSI)
- Convert 20,000 Pa (wind pressure) to PSI. (Answer: 2.90 PSI)
- An FEA output is 500,000,000 Pa (500 MPa). What is this in PSI? (Answer: 72,519 PSI ≈ 72.5 ksi)
- Convert 6,895 Pa to PSI. (Answer: 1.000 PSI — exact reference)
CFD Simulation Output: Pascals to US Specs
Computational Fluid Dynamics software (ANSYS Fluent, OpenFOAM, COMSOL, STAR-CCM+) universally outputs pressure in pascals. When the design team works in PSI (ASME, API standards), every pressure result needs conversion. Typical outputs: wall pressure distributions (Pa → PSI for structural loads), pressure drop (Pa → PSI for pump sizing), and dynamic pressure (Pa → PSI for aerodynamic coefficients). Creating automated post-processing scripts with the ÷6894.76 factor saves hours of manual conversion.
FEA Stress Analysis: Pa to PSI for Material Allowables
Finite Element Analysis outputs stress in pascals (typically MPa = 10⁶ Pa). US design codes (ASME BPVC, AISC) list allowable stresses in ksi or PSI. A common workflow: FEA model → stress in Pa → convert to PSI → compare to code allowable in PSI. Example: peak stress 172,000,000 Pa → 172 MPa → 24,900 PSI → compare to allowable 20,000 PSI → fails by 25% → redesign needed. Simulation pre/post processors allow unit changes, but understanding the conversion prevents errors.
Unit Consistency in Multiphysics Simulations
Coupled simulations (thermal-structural, fluid-structure interaction) require consistent SI units. Mixing PSI with meters or newtons causes catastrophic errors. The Mars Climate Orbiter was lost in 1999 due to a force unit mixup (lbf vs. N). Best practice: run all simulations in SI (Pa, m, kg, s), then convert final results to PSI for American stakeholders. This workflow maintains computational accuracy while delivering results in familiar units.
Key Takeaways
- 1 Pa = 0.000145038 PSI — divide pascals by 6894.76 to get PSI.
- CFD/FEA software outputs in pascals; US design codes use PSI/ksi.
- Standard atmosphere: 101,325 Pa = 14.696 PSI.
- 248 MPa (248,000,000 Pa) = ~36,000 PSI = 36 ksi (A36 steel yield).
- Always run simulations in consistent SI units, convert outputs last.
- Unit conversion errors have caused billion-dollar failures (Mars Climate Orbiter).
Pascal to Psi Conversion Formula
psi = pascal × 0.0001450
1 pascal = 0.0001450 psi
1 psi = 6894.7572932 pascal
Reverse: pascal = psi × 6894.7572932
Frequently Asked Questions
How many psi are in 1 pascal?
There are 0.0001450 psi in 1 pascal. To convert pascal to psi, multiply the value by 0.0001450.
How do I convert pascal to psi?
Multiply your pascal value by 0.0001450 to get the equivalent in psi. For example, 5 pascal = 5 × 0.0001450 = 0.00073 psi.
How do I convert psi to pascal?
Multiply your psi value by 6894.7572932 to get the equivalent in pascal. Alternatively, divide by 0.0001450.
What is 10 pascal in psi?
10 pascal is equal to 0.00145 psi.
What is 100 pascal in psi?
100 pascal is equal to 0.01450 psi.