psf to kPa Converter (Pounds/ft² to Kilopascals)
Convert architectural floor live loads, roof snow loads, wind pressures, and soil bearing capacity from psf to kPa.
psf to kPa Conversion Formula
To convert any value in Pounds per Square Foot (lb/ft²) (psf) to Kilopascal (kN/m²) (kPa), multiply the quantity by the exact factor 0.0478802589.
psf to kPa Conversion Chart
| psf (Pounds per Square Foot (lb/ft²)) | kPa (Kilopascal (kN/m²)) | Conversion Ratio |
|---|---|---|
| 5 psf | 0.239401 kPa | 1 psf = 0.04788 kPa |
| 10 psf | 0.478803 kPa | 1 psf = 0.04788 kPa |
| 15 psf | 0.718204 kPa | 1 psf = 0.04788 kPa |
| 20 psf | 0.957605 kPa | 1 psf = 0.04788 kPa |
| 25 psf | 1.19701 kPa | 1 psf = 0.04788 kPa |
| 30 psf | 1.43641 kPa | 1 psf = 0.04788 kPa |
| 40 psf | 1.91521 kPa | 1 psf = 0.04788 kPa |
| 50 psf | 2.39401 kPa | 1 psf = 0.04788 kPa |
| 60 psf | 2.87282 kPa | 1 psf = 0.04788 kPa |
| 80 psf | 3.83042 kPa | 1 psf = 0.04788 kPa |
| 100 psf | 4.78803 kPa | 1 psf = 0.04788 kPa |
| 150 psf | 7.18204 kPa | 1 psf = 0.04788 kPa |
| 200 psf | 9.57605 kPa | 1 psf = 0.04788 kPa |
| 1,000 psf | 47.8803 kPa | 1 psf = 0.04788 kPa |
| 2,000 psf | 95.7605 kPa | 1 psf = 0.04788 kPa |
| 3,000 psf | 143.641 kPa | 1 psf = 0.04788 kPa |
| 4,000 psf | 191.521 kPa | 1 psf = 0.04788 kPa |
| 5,000 psf | 239.401 kPa | 1 psf = 0.04788 kPa |
Structural Engineering Application
ASCE 7-22 tabulates floor live loads (e.g. 50 psf for offices, 100 psf for corridors) and wind velocity pressures (20–40 psf). Eurocode 1 uses kN/m² (identical to kPa). Convenient rule of thumb: 100 psf ≈ 4.79 kPa (roughly 5 kPa).
Common Conversion Mistake
Confusing psf (pressure) with plf (linear load). psf acts over an area, while plf acts along a beam length.
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