Pressure
hPatopsf
Convert hectopascals (hPa) to pounds-force per square foot (psf).
Factor1 hPa = 2.088543 psf
Converter
hPa
Accepts numbers or expressions, e.g. 150 + 14.7
Result
psf
Rendered to 6 significant figures.
Formula
Formula
psf = hPa × 2.088543
Multiply any value in hectopascals by 2.088543 to obtain the value in pounds-force per square foot.
Worked example
Convert 10 hPa to psf.
- 01Start with 10 hPa.
- 02Multiply by the conversion factor: 10 × 2.088543 = 20.8854 psf.
Result10 hPa = 20.8854 psf
Conversion table
| hPa | psf |
|---|---|
| 1 | 2.0885 |
| 2 | 4.1771 |
| 5 | 10.443 |
| 10 | 20.885 |
| 20 | 41.771 |
| 50 | 104.43 |
| 100 | 208.85 |
| 200 | 417.71 |
| 500 | 1044.3 |
| 1000 | 2088.5 |
Reference values rounded to 5 significant figures for display.
FAQ
What is the conversion factor from hPa to psf?
1 hPa equals 2.088543 psf. To convert, multiply the value in hectopascals by 2.088543.
How do I convert 1 hPa to psf?
1 hPa = 2.08854 psf. For any value, multiply by 2.088543.
How do I convert psf back to hPa?
Divide by the same factor — or equivalently, multiply by 0.4788026. So 1 psf = 0.478803 hPa.
When would I need to convert hectopascal to pound-force per square foot?
Pressure conversions between hPa and psf 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).