Pound/Foot-Second to Reyn Converter
Quick answer
To convert Pound/Foot-Seconds to Reyns, multiply by 0.0002158399 (or divide by 4,633.0631276568). Therefore, 1 Pound/Foot-Second (lb/(ft·s)) equals 0.00021584 Reyns (reyn).
Formula: reyn = lb/(ft·s) × 0.0002158399. Worked example: 10 lb/(ft·s) = 0.002158 reyn.
Convert Pound/Foot-Second (lb/(ft·s)) to Reyn (reyn) online with our free unit converter. In dynamic viscosity, 1 lb/(ft·s) = 0.000216 reyn. Explore step-by-step conversion steps, mathematical formulas, and quick conversion reference tables below.
Worked example: converting Pound/Foot-Second to Reyn
- Step 1 — start with the formula. reyn = lb/(ft·s) × 0.0002158399
- Step 2 — substitute your figure. 10 lb/(ft·s) × 0.0002158399
- Step 3 — read the result. 10 lb/(ft·s) = 0.002158 reyn
- Step 4 — check it in reverse. lb/(ft·s) = reyn × 4,633.0631276568 returns 9.9982 lb/(ft·s), which matches the figure you started with.
Dynamic Viscosity Converter
8 units available
1 lb/(ft·s) = 0.000216 reyn
Formula:
reyn = lb/(ft·s) × 0.0002158399With your value: 1 lb/(ft·s) = 0.00021584 reyn
Other Pound/Foot-Second to Reyn conversions
Pound/Foot-Second to Reyn Conversion Table
| Pound/Foot-Second (lb/(ft·s)) | Reyn (reyn) |
|---|---|
| 0.5 | 0.000108 |
| 1 | 0.000216 |
| 2 | 0.000432 |
| 5 | 0.001079 |
| 10 | 0.002158 |
| 15 | 0.003238 |
| 20 | 0.004317 |
| 25 | 0.005396 |
| 50 | 0.010792 |
| 100 | 0.021584 |
| 250 | 0.05396 |
| 500 | 0.10792 |
| 1000 | 0.21584 |
Reyn to Pound/Foot-Second Conversion Table
| Reyn (reyn) | Pound/Foot-Second (lb/(ft·s)) |
|---|---|
| 0.5 | 2,316.531564 |
| 1 | 4,633.063128 |
| 2 | 9,266.126255 |
| 5 | 23,165.315638 |
| 10 | 46,330.631277 |
| 15 | 69,495.946915 |
| 20 | 92,661.262553 |
| 25 | 115,826.578191 |
| 50 | 231,653.156383 |
| 100 | 463,306.312766 |
| 250 | 1,158,265.781914 |
| 500 | 2,316,531.563828 |
| 1000 | 4,633,063.127657 |
Where these values come from
Every factor on this page is traced to the document that defines it. See the full provenance dataset or our methodology.
Pound/Foot-Second (lb/(ft·s))
Dynamic Viscosity
Derived quantity, pascal-second (Pa·s = kg/(m·s)). The poise is exactly 0.1 Pa·s by CGS definition.
Source: NIST Special Publication 811, Guide for the Use of the International System of Units
National Institute of Standards and Technology (US) · Reviewed 2026-07-01
Reyn (reyn)
Dynamic Viscosity
Derived quantity, pascal-second (Pa·s = kg/(m·s)). The poise is exactly 0.1 Pa·s by CGS definition.
Source: NIST Special Publication 811, Guide for the Use of the International System of Units
National Institute of Standards and Technology (US) · Reviewed 2026-07-01
How to Convert Pound/Foot-Second to Reyn
To convert from Pound/Foot-Second (lb/(ft·s)) to Reyn (reyn), multiply the value by 0.0002158399.
Formula: reyn = lb/(ft·s) × 0.0002158399
Reverse: lb/(ft·s) = reyn × 4,633.0631276568
Step-by-Step Example
- Start with your value in Pound/Foot-Second. For example: 5 lb/(ft·s)
- Multiply by the conversion factor: 5 x 0.0002158399
- The result is: 0.001079 reyn
Pound/Foot-Second and Reyn Relationship
This calculation facilitates standardized conversion between recognized units of dynamic viscosity. Since 1 Pound/Foot-Second represents a fraction of a Reyn (1 Reyn ≈ 4,633.0631 Pound/Foot-Seconds), the Reyn is the larger measurement interval. Understanding the relationship between Pound/Foot-Second and Reyn is essential for accurate calculations in physics, engineering, commerce, and daily applications.
About Pound/Foot-Second
The Pound/Foot-Second (symbol: lb/(ft·s)) is a recognized unit in the US Customary / Imperial measurement framework, utilized within dynamic viscosity applications for precision and standardized data representation.
Common uses of Pound/Foot-Second: dynamic viscosity calculations, engineering and science, education.
About Reyn
The Reyn (symbol: reyn) is a recognized unit in the Standard measurement framework, utilized within dynamic viscosity applications for precision and standardized data representation.
Common uses of Reyn: dynamic viscosity calculations, engineering and science, education.
Frequently Asked Questions
- How many Reyns are in 1 Pound/Foot-Second?
- There are exactly 0.0002158399 Reyns in 1 Pound/Foot-Second. This means the conversion factor from Pound/Foot-Second to Reyn is 0.0002158399.
- What is the formula to convert Pound/Foot-Second to Reyn?
- The formula to convert Pound/Foot-Second to Reyn is: reyn = lb/(ft·s) × 0.0002158399. For example, to convert 10 Pound/Foot-Seconds to Reyns, you would multiply 10 by 0.0002158399.
- What is a Pound/Foot-Second?
- The Pound/Foot-Second (symbol: lb/(ft·s)) is a recognized unit in the US Customary / Imperial measurement framework, utilized within dynamic viscosity applications for precision and standardized data representation.
- What is a Reyn?
- The Reyn (symbol: reyn) is a recognized unit in the Standard measurement framework, utilized within dynamic viscosity applications for precision and standardized data representation.
- What are the common uses of Pound/Foot-Second?
- The Pound/Foot-Second is commonly used in dynamic viscosity calculations, engineering and science, education.
Related Dynamic Viscosity Conversions
Cite this page
UnitConvertLab. (2026). Pound/Foot-Second to Reyn converter. UnitConvertLab. Retrieved from https://unitconvertlab.com/convert/lb_per_foot_second-to-reyn