Convert Pound-force seconds per square inch to Pascal-seconds
Convert Pound-force seconds per square inch (lbf·s/in²) to Pascal-seconds (Pa·s) instantly and accurately.
Conversion Formula
Pa·s = lbf·s/in² × 6894.757293
About Pound-force seconds per square inch
The pound-force second per square inch (lbf·s/in², reyn) equals 144 × 47.880 ≈ 6 894.8 Pa·s. Informally called the "reyn" (after Osborne Reynolds), it is used in US tribology and bearing-design engineering, where oil-film viscosity in heavily loaded contacts is stated in reyn. Turbine bearing oils at operating temperature range 0.5-3 × 10⁻⁶ reyn. 1 reyn ≈ 6 894.8 Pa·s.
About Pascal-seconds
The pascal-second (Pa·s) is the SI coherent unit of dynamic viscosity, equal to 1 kg/(m·s) = 1 N·s/m². Honey at 25 °C is ≈2-10 Pa·s; glycerol ≈1.4 Pa·s; bitumen 10⁴-10⁸ Pa·s. It replaced the poise in SI usage and is the standard unit in research and simulation software (CFD, process simulators). 1 Pa·s = 10 P = 1 000 cP.
Quick Reference Table
| Pound-force seconds per square inch (lbf·s/in²) | Pascal-seconds (Pa·s) |
|---|---|
| 1 lbf·s/in² | 6894.76 Pa·s |
| 2 lbf·s/in² | 13789.5 Pa·s |
| 5 lbf·s/in² | 34473.8 Pa·s |
| 10 lbf·s/in² | 68947.6 Pa·s |
| 25 lbf·s/in² | 172369 Pa·s |
| 50 lbf·s/in² | 344738 Pa·s |
| 100 lbf·s/in² | 689476 Pa·s |