Pound per foot second (lb/(ft·s))
US mass-based unit of dynamic viscosity: one avoirdupois pound per foot per second.
What is a pound per foot second?
- Symbol
- lb/(ft·s)
- Quantity
- Dynamic Viscosity
- Unit system
- US customary
- Definition
- US mass-based unit of dynamic viscosity: one avoirdupois pound per foot per second.
- Exact
- Yes, the value is exact by definition
- Source
- NIST Special Publication 811 (2008), Appendix B.8
Common applications
Used in US fluid mechanics and heat transfer textbooks, for example in Reynolds number calculations.
Pound per foot second in other dynamic viscosity units
- 1 lb/(ft·s) ≈ 1.488163944 Pa·sPascal second
- 1 lb/(ft·s) ≈ 1488.163944 mPa·sMillipascal second
- 1 lb/(ft·s) ≈ 14.88163944 PPoise
- 1 lb/(ft·s) ≈ 1488.163944 cPPound per foot second to Centipoise converter
- 1 lb/(ft·s) ≈ 0.03108095017 lbf·s/ft²Pound-force second per square foot
- 1 lb/(ft·s) ≈ 0.0002158399317 reynReyn
Pound per foot second quick reference
| Pound per foot second | Centipoise | Pascal second | Millipascal second |
|---|---|---|---|
| 1 lb/(ft·s) | ≈ 1488.163944 cP | ≈ 1.488163944 Pa·s | ≈ 1488.163944 mPa·s |
| 10 lb/(ft·s) | ≈ 14881.63944 cP | ≈ 14.88163944 Pa·s | ≈ 14881.63944 mPa·s |
| 100 lb/(ft·s) | ≈ 148816.3944 cP | ≈ 148.8163944 Pa·s | ≈ 148816.3944 mPa·s |
| 1000 lb/(ft·s) | ≈ 1488163.944 cP | ≈ 1488.163944 Pa·s | ≈ 1488163.944 mPa·s |
Where the pound per foot second fits
The next smaller dynamic viscosity unit is the pascal second (Pa·s). 1 lb/(ft·s) ≈ 1.488163944 Pa·s, and 1 Pa·s ≈ 0.6719689751 lb/(ft·s).
The next larger dynamic viscosity unit is the pound-force second per square foot (lbf·s/ft²). 1 lb/(ft·s) ≈ 0.03108095017 lbf·s/ft², and 1 lbf·s/ft² ≈ 32.17404856 lb/(ft·s).
Frequently asked questions
- How many centipoise are in one pound per foot second?
- One pound per foot second ≈ 1488.163944 cP (centipoise).
- How many pascal seconds are in one pound per foot second?
- One pound per foot second ≈ 1.488163944 Pa·s (pascal seconds).
- How many millipascal seconds are in one pound per foot second?
- One pound per foot second ≈ 1488.163944 mPa·s (millipascal seconds).