Convert Micropascal-seconds to Pounds per foot-hour
Convert Micropascal-seconds (µPa·s) to Pounds per foot-hour (lb/(ft·h)) instantly and accurately.
Conversion Formula
lb/(ft·h) = µPa·s × 0.002419088311
About Micropascal-seconds
The micropascal-second (µPa·s) equals 10⁻⁶ Pa·s, the viscosity range of dilute gases at ambient conditions. Air at 20 °C has a dynamic viscosity of ≈18.5 µPa·s; helium ≈19.6 µPa·s; hydrogen ≈9.0 µPa·s. Gas turbine and aerodynamics calculations routinely work at this scale. 1 µPa·s = 10⁻⁶ Pa·s = 10⁻³ mPa·s = 10⁻⁵ cP.
About Pounds per foot-hour
The pound per foot-hour (lb/(ft·h)) equals 0.45359237 / (0.3048 × 3600) ≈ 4.134×10⁻⁴ Pa·s. It appears in US heat-transfer and mass-transfer textbooks (e.g., McCabe, Smith & Harriott) where viscosity enters the Reynolds number using consistent hour-based units alongside BTU, ft, and lb quantities. Water at 20 °C is ≈2.42 lb/(ft·h). 1 lb/(ft·h) ≈ 4.134×10⁻⁴ Pa·s.
Quick Reference Table
| Micropascal-seconds (µPa·s) | Pounds per foot-hour (lb/(ft·h)) |
|---|---|
| 1 µPa·s | 0.00241909 lb/(ft·h) |
| 2 µPa·s | 0.00483818 lb/(ft·h) |
| 5 µPa·s | 0.0120954 lb/(ft·h) |
| 10 µPa·s | 0.0241909 lb/(ft·h) |
| 25 µPa·s | 0.0604772 lb/(ft·h) |
| 50 µPa·s | 0.120954 lb/(ft·h) |
| 100 µPa·s | 0.241909 lb/(ft·h) |