Convert Pounds per inch-second to Millipoises
Convert Pounds per inch-second (lb/(in·s)) to Millipoises (mP) instantly and accurately.
Conversion Formula
mP = lb/(in·s) × 178579.6732
About Pounds per inch-second
The pound per inch-second (lb/(in·s)) equals 0.45359237/0.0254 ≈ 17.858 Pa·s, used in plastics extrusion and rubber compounding industries where inch-based dimensions are combined with mass-based flow analysis. Polymer melt viscosities at processing temperatures are sometimes quoted in lb/(in·s) in older US extrusion equipment manuals. 1 lb/(in·s) ≈ 17.858 Pa·s = 12 lb/(ft·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 inch-second (lb/(in·s)) | Millipoises (mP) |
|---|---|
| 1 lb/(in·s) | 178580 mP |
| 2 lb/(in·s) | 357159 mP |
| 5 lb/(in·s) | 892898 mP |
| 10 lb/(in·s) | 1785800 mP |
| 25 lb/(in·s) | 4464490 mP |
| 50 lb/(in·s) | 8928980 mP |
| 100 lb/(in·s) | 17858000 mP |