Convert Centipoises to Pounds per foot-hour
Convert Centipoises (cP) to Pounds per foot-hour (lb/(ft·h)) instantly and accurately.
Conversion Formula
lb/(ft·h) = cP × 2.419088311
About Centipoises
The centipoise (cP) equals 10⁻³ Pa·s, numerically equal to 1 mPa·s. It remains the most widely used practical unit in industry because water at 20 °C has a viscosity of almost exactly 1 cP. Process engineers, petroleum analysts, and food technologists all specify viscosity in cP. Motor oil SAE 10W has a cold-viscosity limit of ≈3 500 cP at -25 °C. 1 cP = 10⁻³ Pa·s = 10⁻² 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
| Centipoises (cP) | Pounds per foot-hour (lb/(ft·h)) |
|---|---|
| 1 cP | 2.41909 lb/(ft·h) |
| 2 cP | 4.83818 lb/(ft·h) |
| 5 cP | 12.0954 lb/(ft·h) |
| 10 cP | 24.1909 lb/(ft·h) |
| 25 cP | 60.4772 lb/(ft·h) |
| 50 cP | 120.954 lb/(ft·h) |
| 100 cP | 241.909 lb/(ft·h) |