Convert Pounds per foot-hour to Millipoises
Convert Pounds per foot-hour (lb/(ft·h)) to Millipoises (mP) instantly and accurately.
Conversion Formula
mP = lb/(ft·h) × 4.133788732
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.
About Millipoises
The millipoise (mP) equals 10⁻⁴ Pa·s, an intermediate CGS unit between the micropascal-second gas range and the centipoise liquid range. It is occasionally used in older European scientific literature and in the textile industry for sizing-solution viscosity. Air at 20 °C is ≈ 0.185 mP; a 0.5% polymer solution might read 5-20 mP. 1 mP = 10⁻⁴ Pa·s = 0.1 cP.
Quick Reference Table
| Pounds per foot-hour (lb/(ft·h)) | Millipoises (mP) |
|---|---|
| 1 lb/(ft·h) | 4.13379 mP |
| 2 lb/(ft·h) | 8.26758 mP |
| 5 lb/(ft·h) | 20.6689 mP |
| 10 lb/(ft·h) | 41.3379 mP |
| 25 lb/(ft·h) | 103.345 mP |
| 50 lb/(ft·h) | 206.689 mP |
| 100 lb/(ft·h) | 413.379 mP |