Pressure
psftobar
Convert pounds-force per square foot (psf) to bar (bar).
Factor1 psf = 0.0004788026 bar
Converter
psf
Accepts numbers or expressions, e.g. 150 + 14.7
Result
bar
Rendered to 6 significant figures.
Formula
Formula
bar = psf × 0.0004788026
Multiply any value in pounds-force per square foot by 0.0004788026 to obtain the value in bar.
Worked example
Convert 1000 psf to bar.
- 01Start with 1000 psf.
- 02Multiply by the conversion factor: 1000 × 0.0004788026 = 0.478803 bar.
Result1000 psf = 0.478803 bar
Conversion table
| psf | bar |
|---|---|
| 1 | 0.0004788 |
| 2 | 0.00095761 |
| 5 | 0.002394 |
| 10 | 0.004788 |
| 20 | 0.0095761 |
| 50 | 0.02394 |
| 100 | 0.04788 |
| 200 | 0.095761 |
| 500 | 0.2394 |
| 1000 | 0.4788 |
Reference values rounded to 5 significant figures for display.
FAQ
What is the conversion factor from psf to bar?
1 psf equals 0.0004788026 bar. To convert, multiply the value in pounds-force per square foot by 0.0004788026.
How do I convert 1 psf to bar?
1 psf = 0.000478803 bar. For any value, multiply by 0.0004788026.
How do I convert bar back to psf?
Divide by the same factor — or equivalently, multiply by 2088.543. So 1 bar = 2088.54 psf.
When would I need to convert pound-force per square foot to bar?
Pressure conversions between psf and bar 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).