Convert Poise to Pound-force Seconds per Square Foot
1 poise (P) equals 0.002088543423 pound-force seconds per square foot (lbf·s/ft²).
1 P = 0.002088543423 lbf·s/ft²
Type in either box. Scientific notation works: 1.5e-3.
Converting a list? Use the bulk poise to pound-force second per square foot converter to paste a column from Excel.
How to Convert Poise to Pound-force Second per Square Foot
- 1 P = 0.002088543423 lbf·s/ft²
- 1 lbf·s/ft² = 478.8025898 P
- Example: convert 15 P to lbf·s/ft²: 15 P = 15 × 0.002088543423 lbf·s/ft² = 0.03132815135 lbf·s/ft²
Formula
lbf·s/ft² = P × 0.002088543423315
or lbf·s/ft² = P ÷ 478.8025898034
Derivation from SI units:
- 1 P = 1 dyn·s/cm² = 0.1 Pa·s
- 1 lbf·s/ft² = 4.4482216152605 N·s ÷ 0.09290304 m² = 47.880258980 Pa·s
- 1 P = 0.1 Pa·s ÷ 47.88025898034 Pa·s per lbf·s/ft² = 0.002088543423315 lbf·s/ft²
Both units are defined exactly, so the factor is exact. Poise definition: poise; Pound-force Second per Square Foot definition: pound-force second per square foot.
Worked examples
- A reading of 1 P converts to 0.002088543423 lbf·s/ft².
1 P × 0.002088543423 = 0.002088543423 lbf·s/ft² - A value of 10 P is 0.02088543423 lbf·s/ft².
10 P × 0.002088543423 = 0.02088543423 lbf·s/ft²
Poise to Pound-force Second per Square Foot conversion table
| Poise (P) | Pound-force Seconds per Square Foot (lbf·s/ft²) |
|---|---|
| 0.01 P | 0.00002088543423 lbf·s/ft² |
| 0.1 P | 0.0002088543423 lbf·s/ft² |
| 1 P | 0.002088543423 lbf·s/ft² |
| 2 P | 0.004177086847 lbf·s/ft² |
| 5 P | 0.01044271712 lbf·s/ft² |
| 10 P | 0.02088543423 lbf·s/ft² |
| 50 P | 0.1044271712 lbf·s/ft² |
| 100 P | 0.2088543423 lbf·s/ft² |
Where it's used
Poise are used for older physics and rheology literature, while pound-force seconds per square foot appear in US fluid-mechanics textbooks and hydraulics. Both measure dynamic (absolute) viscosity, so the conversion is a fixed factor.
Poise to other dynamic viscosity units
| Conversion | 1 P equals |
|---|---|
| poise to pascal-second | 0.1 Pa·s |
| poise to millipascal-second | 100 mPa·s |
| poise to centipoise | 100 cP |
| poise to pound-force second per square foot | 0.002088543423 lbf·s/ft² |
| poise to pound per foot-second | 0.06719689751 lb/(ft·s) |
Frequently asked questions
How many pound-force seconds per square foot are in 1 poise?
1 P = 0.002088543423 lbf·s/ft².
How do I convert poise to pound-force seconds per square foot?
Multiply the value in P by 0.002088543423, or divide it by 478.8025898. For example, 15 P × 0.002088543423 = 0.03132815135 lbf·s/ft².
Is the P to lbf·s/ft² conversion exact?
Yes. Both units are defined exactly, so the ratio is exact; its decimal form does not terminate and is shown here to 10 significant figures (more with the precision selector).
Sources
- Guide for the Use of the International System of Units (SI), NIST Special Publication 811, 2008 Edition, National Institute of Standards and Technology , Appendix B.8, "poise (P)".
- Guide for the Use of the International System of Units (SI), NIST Special Publication 811, 2008 Edition, National Institute of Standards and Technology , Appendix B.8, "pound-force second per square foot".
Last reviewed: . Factors are stored exactly and computed with 50-digit decimal arithmetic. See how we verify conversion factors.
Cite this page
APA
Scientific Converters. (2026, October 15). Convert Poise to Pound-force Seconds per Square Foot. Retrieved October 17, 2026, from https://scientificconverters.com/dynamic-viscosity/poise-to-pound-force-seconds-per-square-foot/
IEEE
Scientific Converters, "Convert Poise to Pound-force Seconds per Square Foot," scientificconverters.com. Accessed: Oct. 17, 2026. [Online]. Available: https://scientificconverters.com/dynamic-viscosity/poise-to-pound-force-seconds-per-square-foot/