Convert Pounds per foot-second to Pounds per foot-hour
Convert Pounds per foot-second (lb/(ft·s)) to Pounds per foot-hour (lb/(ft·h)) instantly and accurately.
Conversion Formula
lb/(ft·h) = lb/(ft·s) × 3600
About Pounds per foot-second
The pound per foot-second (lb/(ft·s)) equals 0.45359237/0.3048 ≈ 1.4882 Pa·s, the absolute viscosity unit in the foot-pound-second (FPS) system. It appears in legacy US chemical engineering textbooks and fluid mechanics problems stated in USC units. A heavy fuel oil at 50 °C with viscosity 0.050 Pa·s = 0.0336 lb/(ft·s). 1 lb/(ft·s) ≈ 1.4882 Pa·s = 14.882 P.
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
| Pounds per foot-second (lb/(ft·s)) | Pounds per foot-hour (lb/(ft·h)) |
|---|---|
| 1 lb/(ft·s) | 3600 lb/(ft·h) |
| 2 lb/(ft·s) | 7200 lb/(ft·h) |
| 5 lb/(ft·s) | 18000 lb/(ft·h) |
| 10 lb/(ft·s) | 36000 lb/(ft·h) |
| 25 lb/(ft·s) | 90000 lb/(ft·h) |
| 50 lb/(ft·s) | 180000 lb/(ft·h) |
| 100 lb/(ft·s) | 360000 lb/(ft·h) |