Pressure
psftokPa
Convert pounds-force per square foot (psf) to kilopascals (kPa).
Factor1 psf = 0.04788026 kPa
Converter
psf
Accepts numbers or expressions, e.g. 150 + 14.7
Result
kPa
Rendered to 6 significant figures.
Formula
Formula
kPa = psf × 0.04788026
Multiply any value in pounds-force per square foot by 0.04788026 to obtain the value in kilopascals.
Worked example
Convert 1000 psf to kPa.
- 01Start with 1000 psf.
- 02Multiply by the conversion factor: 1000 × 0.04788026 = 47.8803 kPa.
Result1000 psf = 47.8803 kPa
Conversion table
| psf | kPa |
|---|---|
| 1 | 0.04788 |
| 2 | 0.095761 |
| 5 | 0.2394 |
| 10 | 0.4788 |
| 20 | 0.95761 |
| 50 | 2.394 |
| 100 | 4.788 |
| 200 | 9.5761 |
| 500 | 23.94 |
| 1000 | 47.88 |
Reference values rounded to 5 significant figures for display.
FAQ
What is the conversion factor from psf to kPa?
1 psf equals 0.04788026 kPa. To convert, multiply the value in pounds-force per square foot by 0.04788026.
How do I convert 1 psf to kPa?
1 psf = 0.0478803 kPa. For any value, multiply by 0.04788026.
How do I convert kPa back to psf?
Divide by the same factor — or equivalently, multiply by 20.88543. So 1 kPa = 20.8854 psf.
When would I need to convert pound-force per square foot to kilopascal?
Pressure conversions between psf and kPa are common when working with mixed-vendor instrumentation, when piping codes use different units to process datasheets, or when converting field readings into SI for hydraulic calculations.
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).