Convert Kilotex to Yorkshire Woollen Count (ktex to NY)
Kilotex and Yorkshire woollen count are inversely related: NY = 1.937713468 ÷ ktex, so 15 ktex = 0.1291808979 NY.
Also searched as kilotex to NY, kilotex in NY, kilotex into Yorkshire woollen count, ktex to NY, ktex in Yorkshire woollen count, ktex into Yorkshire woollen count, kilotex to Yorkshire woollen count and ktex to Yorkshire woollen count converter.
1 ktex = 1.937713468 NY
Type in either box. Scientific notation works: 1.5e-3.
Converting a list? Use the bulk kilotex to woollen count converter to paste a column from Excel.
How to Convert Kilotex to Yorkshire Woollen Count
- NY = 1.937713468 ÷ ktex
- ktex = 1.937713468 ÷ NY
- Example: convert 15 ktex to NY: 1.937713468 ÷ 15 = 0.1291808979 NY
Formula
NY = 1.93771346819 ÷ ktex
Derivation from SI units:
- 1 ktex = 1 g per metre = 1000 tex = 10⁻³ kg/m (exact)
- Yorkshire woollen count = number of 256-yard skeins per pound, so tex = 1937.7 ÷ count
- Solving for NY: NY = 1.93771346819 ÷ ktex (a higher ktex means a lower NY)
Both units are defined exactly, so the factor is exact. Kilotex definition: kilotex; Yorkshire Woollen Count definition: Yorkshire woollen count.
Worked examples
- A reading of 2.5 ktex converts to 0.7750853873 NY.
1.937713468 ÷ 2.5 = 0.7750853873 NY - A value of 4 ktex is 0.484428367 NY.
1.937713468 ÷ 4 = 0.484428367 NY
Kilotex to Yorkshire Woollen Count conversion table
| Kilotex (ktex) | Yorkshire Woollen Count (NY) |
|---|---|
| 0.5 ktex | 3.875426936 NY |
| 1 ktex | 1.937713468 NY |
| 2 ktex | 0.9688567341 NY |
| 2.5 ktex | 0.7750853873 NY |
| 3 ktex | 0.6459044894 NY |
| 3.5 ktex | 0.5536324195 NY |
| 4 ktex | 0.484428367 NY |
| 5 ktex | 0.3875426936 NY |
| 6 ktex | 0.3229522447 NY |
| 8 ktex | 0.2422141835 NY |
Where it's used
Kilotex are used for card and draw-frame sliver (about 3–5 ktex), while Yorkshire woollen count appear in woollen-spun yarns for tweeds and blankets. Both measure yarn count (linear density of yarns and fibres), but one system is the inverse of the other, so a fixed constant is divided by the value.
Kilotex to other yarn count units
| Conversion | 1 ktex equals |
|---|---|
| kilotex to woollen count | 1.937713468 NY |
| kilotex to tex | 1000 tex |
| kilotex to denier | 9000 den |
| kilotex to Ne | 0.5905412474 Ne |
| kilotex to decitex | 10000 dtex |
| kilotex to Nm | 1 Nm |
| kilotex to Nw | 0.8858118712 Nw |
| kilotex to linen lea | 1.653515493 NeL |
Show 1 more units
| kilotex to kilogram per metre | 0.001 kg/m |
|---|
Frequently asked questions
What is the formula for kilotex to Yorkshire woollen count?
NY = 1.937713468 ÷ ktex. The two systems are inversely related, so divide the constant by the value; do not multiply. For example, 1.937713468 ÷ 15 = 0.1291808979 NY.
Why does a higher ktex give a lower NY?
Yorkshire Woollen Count counts length per unit mass (an indirect system), while kilotex counts mass per unit length (a direct system). A finer yarn has a higher indirect number and a lower direct number.
Is the ktex to NY 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
- ISO 1144, Textiles — Universal system for designating linear density (Tex System), International Organization for Standardization , Tex system.
- ASTM D2260, Standard Tables of Conversion Factors and Equivalent Yarn Numbers Measured in Various Numbering Systems, ASTM International , Woollen count (Yorkshire skeins).
- 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, "yard" and "pound".
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 Kilotex to Yorkshire Woollen Count (ktex to NY). Retrieved October 25, 2026, from https://scientificconverters.com/yarn-count/kilotex-to-woollen-count/
IEEE
Scientific Converters, "Convert Kilotex to Yorkshire Woollen Count (ktex to NY)," scientificconverters.com. Accessed: Oct. 25, 2026. [Online]. Available: https://scientificconverters.com/yarn-count/kilotex-to-woollen-count/