Viscosity Dynamic / lbf·s/ft² → P
Convert Pound-force seconds per square foot to Poise
Convert dynamic viscosity in pascal seconds and poise. Convert Pound-force seconds per square foot (lbf·s/ft²) to Poise (P). Find the formula, worked examples, unit definitions, and practical guidance below.
Reverse: Poise to Pound-force seconds per square foot →
How to convert pound-force seconds per square foot to poise
Dynamic viscosity relates shear stress to shear rate. It becomes kinematic viscosity only after division by density. For non-Newtonian fluids, the stated value may depend on shear rate.
Use x for the value in lbf·s/ft², b for the intermediate value in Pa·s, and y for the result in P.
P = lbf·s/ft² × 47.88025898033584 ÷ 0.1
Worked examples
10 lbf·s/ft² ≈ 4788.02589803 P
Step 1: (10 × 47.8802589803) ≈ 478.802589803 Pa·s.
Step 2: 478.802589803 ÷ 0.1 ≈ 4788.02589803 P.20 lbf·s/ft² ≈ 9576.05179607 P
Step 1: (20 × 47.8802589803) ≈ 957.605179607 Pa·s.
Step 2: 957.605179607 ÷ 0.1 ≈ 9576.05179607 P.
Results are rounded to 12 significant digits. Converting units does not increase the precision of the original measurement. Very large or small values outside JavaScript’s finite numeric range are rejected.
About Pound-force seconds per square foot
Pound-force seconds per square foot (lbf·s/ft²) measures viscosity dynamic under the conventions above. The base value in Pa·s is (x × 47.8802589803), where x is the numerical value in lbf·s/ft². Factors shown here are rounded for display; calculations use the stored factor.
About Poise
Poise (P) measures viscosity dynamic under the conventions above. The base value in Pa·s is (x × 0.1), where x is the numerical value in P. Factors shown here are rounded for display; calculations use the stored factor.
Definitions and sources
Carry the same physical assumptions into subsequent physics calculations.
Pound-force seconds per square foot to poise reference table
| Pound-force seconds per square foot (lbf·s/ft²) | Poise (P) |
|---|---|
| 1 | 478.802589803 |
| 5 | 2394.01294902 |
| 10 | 4788.02589803 |
| 25 | 11970.0647451 |
| 50 | 23940.1294902 |
| 100 | 47880.2589803 |
| 1000 | 478802.589803 |
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