Viscosity
lb/(ft·hr)toP
Convert pounds per foot-hour (lb/(ft·hr)) to poise (P).
Factor1 lb/(ft·hr) = 0.004133789 P
Converter
lb/(ft·hr)
Accepts numbers or expressions, e.g. 150 + 14.7
Result
P
Rendered to 6 significant figures.
Formula
Formula
P = lb/(ft·hr) × 0.004133789
Multiply any value in pounds per foot-hour by 0.004133789 to obtain the value in poise.
Worked example
Convert 100 lb/(ft·hr) to P.
- 01Start with 100 lb/(ft·hr).
- 02Multiply by the conversion factor: 100 × 0.004133789 = 0.413379 P.
Result100 lb/(ft·hr) = 0.413379 P
Conversion table
| lb/(ft·hr) | P |
|---|---|
| 1 | 0.0041338 |
| 2 | 0.0082676 |
| 5 | 0.020669 |
| 10 | 0.041338 |
| 20 | 0.082676 |
| 50 | 0.20669 |
| 100 | 0.41338 |
| 200 | 0.82676 |
| 500 | 2.0669 |
| 1000 | 4.1338 |
Reference values rounded to 5 significant figures for display.
FAQ
What is the conversion factor from lb/(ft·hr) to P?
1 lb/(ft·hr) equals 0.004133789 P. To convert, multiply the value in pounds per foot-hour by 0.004133789.
How do I convert 1 lb/(ft·hr) to P?
1 lb/(ft·hr) = 0.00413379 P. For any value, multiply by 0.004133789.
How do I convert P back to lb/(ft·hr)?
Divide by the same factor — or equivalently, multiply by 241.9088. So 1 P = 241.909 lb/(ft·hr).
When would I need to convert pound per foot-hour to poise?
Dynamic viscosity conversions between lb/(ft·hr) and P are common in fluid characterisation, pump and control valve sizing, pipeline pressure-drop calculations, and lubrication engineering. Centipoise (cP) and mPa·s are the most widely used units in process datasheets; Pa·s is required for most simulation tools.
Is the conversion exact?
The factor shown is precise to at least 7 significant figures. For most process-engineering work this is far better than instrument accuracy. For metrology or trade applications, refer to the relevant national standard (NIST, BIPM, ISO 80000).