Viscosity
reyntolb/(ft·hr)
Convert reynolds (lbf·s/in²) (reyn) to pounds per foot-hour (lb/(ft·hr)).
Factor1 reyn = 1.667903e+7 lb/(ft·hr)
Converter
reyn
Accepts numbers or expressions, e.g. 150 + 14.7
Result
lb/(ft·hr)
Rendered to 6 significant figures.
Formula
Formula
lb/(ft·hr) = reyn × 1.667903e+7
Multiply any value in reynolds (lbf·s/in²) by 1.667903e+7 to obtain the value in pounds per foot-hour.
Worked example
Convert 1 reyn to lb/(ft·hr).
- 01Start with 1 reyn.
- 02Multiply by the conversion factor: 1 × 1.667903e+7 = 1.6679e+7 lb/(ft·hr).
Result1 reyn = 1.6679e+7 lb/(ft·hr)
Conversion table
| reyn | lb/(ft·hr) |
|---|---|
| 1 | 1.6679e+7 |
| 2 | 3.3358e+7 |
| 5 | 8.3395e+7 |
| 10 | 1.6679e+8 |
| 20 | 3.3358e+8 |
| 50 | 8.3395e+8 |
| 100 | 1.6679e+9 |
| 200 | 3.3358e+9 |
| 500 | 8.3395e+9 |
| 1000 | 1.6679e+10 |
Reference values rounded to 5 significant figures for display.
FAQ
What is the conversion factor from reyn to lb/(ft·hr)?
1 reyn equals 1.667903e+7 lb/(ft·hr). To convert, multiply the value in reynolds (lbf·s/in²) by 1.667903e+7.
How do I convert 1 reyn to lb/(ft·hr)?
1 reyn = 1.6679e+7 lb/(ft·hr). For any value, multiply by 1.667903e+7.
How do I convert lb/(ft·hr) back to reyn?
Divide by the same factor — or equivalently, multiply by 5.995554e-8. So 1 lb/(ft·hr) = 5.99555e-8 reyn.
When would I need to convert reynolds (lbf·s/in²) to pound per foot-hour?
Dynamic viscosity conversions between reyn and lb/(ft·hr) 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).