Convert Pound-force seconds per square foot to Centipoises
Convert Pound-force seconds per square foot (lbf·s/ft²) to Centipoises (cP) instantly and accurately.
Conversion Formula
cP = lbf·s/ft² × 47880.25898
About Pound-force seconds per square foot
The pound-force second per square foot (lbf·s/ft²) equals (9.80665 × 0.45359237) / 0.3048² ≈ 47.880 Pa·s, numerically identical to slug/(ft·s). It appears in US civil and structural engineering fluid mechanics, pump hydraulics texts, and older API pipeline standards. A key identity: 1 lbf·s/ft² = 1 slug/(ft·s) ≈ 47.880 Pa·s = 478.8 P.
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.
Quick Reference Table
| Pound-force seconds per square foot (lbf·s/ft²) | Centipoises (cP) |
|---|---|
| 1 lbf·s/ft² | 47880.3 cP |
| 2 lbf·s/ft² | 95760.5 cP |
| 5 lbf·s/ft² | 239401 cP |
| 10 lbf·s/ft² | 478803 cP |
| 25 lbf·s/ft² | 1197010 cP |
| 50 lbf·s/ft² | 2394010 cP |
| 100 lbf·s/ft² | 4788030 cP |