Stress
psftoPa
Convert pounds-force per square foot (stress) (psf) to pascals (stress) (Pa).
Factor1 psf = 47.88026 Pa
Converter
psf
Accepts numbers or expressions, e.g. 150 + 14.7
Result
Pa
Rendered to 6 significant figures.
Formula
Formula
Pa = psf × 47.88026
Multiply any value in pounds-force per square foot (stress) by 47.88026 to obtain the value in pascals (stress).
Worked example
Convert 100 psf to Pa.
- 01Start with 100 psf.
- 02Multiply by the conversion factor: 100 × 47.88026 = 4788.03 Pa.
Result100 psf = 4788.03 Pa
Conversion table
| psf | Pa |
|---|---|
| 1 | 47.88 |
| 2 | 95.761 |
| 5 | 239.4 |
| 10 | 478.8 |
| 20 | 957.61 |
| 50 | 2394 |
| 100 | 4788 |
| 200 | 9576.1 |
| 500 | 23940 |
| 1000 | 47880 |
Reference values rounded to 5 significant figures for display.
FAQ
What is the conversion factor from psf to Pa?
1 psf equals 47.88026 Pa. To convert, multiply the value in pounds-force per square foot (stress) by 47.88026.
How do I convert 1 psf to Pa?
1 psf = 47.8803 Pa. For any value, multiply by 47.88026.
How do I convert Pa back to psf?
Divide by the same factor — or equivalently, multiply by 0.02088543. So 1 Pa = 0.0208854 psf.
When would I need to convert pound-force per square foot (stress) to pascal (stress)?
Stress conversions between psf and Pa are routine in mechanics-of-materials work: yield, ultimate and allowable-stress specification, Young's-modulus tables and structural-design code calculations. MPa and N/mm² dominate ISO and European datasheets, psi and ksi dominate US structural codes, and kgf/cm² and kgf/mm² appear in legacy JIS and heavy-engineering documentation. Stress is the same physical dimension as pressure but a different engineering quantity — this category is mechanics-of-materials, not process pressure.
Is the conversion exact?
The factor shown is precise to at least 7 significant figures. For most process-engineering work this is far better than instrument accuracy. For metrology or trade applications, refer to the relevant national standard (NIST, BIPM, ISO 80000).