Convert Tex to English Cotton Count (tex to Ne)
Tex and English cotton count are inversely related: Ne = 590.5412474 ÷ tex, so 20 tex = 29.52706237 Ne.
Also searched as tex to Ne, tex in Ne, tex into English cotton count, tex in English cotton count, tex to English cotton count and tex to English cotton count converter.
1 tex = 590.5412474 Ne
Type in either box. Scientific notation works: 1.5e-3.
Converting a list? Use the bulk tex to Ne converter to paste a column from Excel.
How to Convert Tex to English Cotton Count
- Ne = 590.5412474 ÷ tex
- tex = 590.5412474 ÷ Ne
- Example: convert 20 tex to Ne: 590.5412474 ÷ 20 = 29.52706237 Ne
Formula
Ne = 590.5412474482 ÷ tex
Derivation from SI units:
- 1 tex = 1 g per 1000 m = 10⁻⁶ kg/m (exact)
- Ne = number of 840-yard hanks per pound, so tex = 0.45359237 kg ÷ (840 × 0.9144 m) × 10⁶ ÷ Ne = 590.5412 ÷ Ne
- Solving for Ne: Ne = 590.5412474482 ÷ tex (a higher tex means a lower Ne)
Both units are defined exactly, so the factor is exact. Tex definition: tex; English Cotton Count definition: English cotton count.
Worked examples
- A 20 tex yarn is 29.52706237 Ne.
590.5412474 ÷ 20 = 29.52706237 Ne - A 14.76 tex yarn is 40.00956961 Ne, a typical shirting yarn.
590.5412474 ÷ 14.76 = 40.00956961 Ne
Tex to English Cotton Count conversion table
| Tex | English Cotton Count (Ne) |
|---|---|
| 5 tex | 118.1082495 Ne |
| 7.4 tex | 79.80287128 Ne |
| 10 tex | 59.05412474 Ne |
| 14.76 tex | 40.00956961 Ne |
| 16.4 tex | 36.00861265 Ne |
| 20 tex | 29.52706237 Ne |
| 25 tex | 23.6216499 Ne |
| 29.5 tex | 20.01834737 Ne |
| 37 tex | 15.96057426 Ne |
| 50 tex | 11.81082495 Ne |
| 59 tex | 10.00917369 Ne |
| 100 tex | 5.905412474 Ne |
Where it's used
Spun-yarn counts in tex are converted to English cotton count (Ne) for spinning mills, cotton trade and weaving specifications. Because Ne is an indirect count, divide 590.5 by the tex value.
Tex to other yarn count units
| Conversion | 1 tex equals |
|---|---|
| tex to Ne | 590.5412474 Ne |
| tex to denier | 9 den |
| tex to decitex | 10 dtex |
| tex to Nm | 1000 Nm |
| tex to Nw | 885.8118712 Nw |
| tex to kilotex | 0.001 ktex |
| tex to woollen count | 1937.713468 NY |
| tex to linen lea | 1653.515493 NeL |
Show 1 more units
| tex to kilogram per metre | 0.000001 kg/m |
|---|
Frequently asked questions
Where does the constant 590.5 come from?
One Ne is one 840-yard hank per pound: 453.59237 g ÷ (840 × 0.9144 m) × 1000 m = 590.5412 g per km, which is 590.5412 tex. Both inputs are exact.
What is the formula for tex to English cotton count?
Ne = 590.5412474 ÷ tex. The two systems are inversely related, so divide the constant by the value; do not multiply. For example, 590.5412474 ÷ 20 = 29.52706237 Ne.
Why does a higher tex give a lower Ne?
English Cotton Count counts length per unit mass (an indirect system), while tex counts mass per unit length (a direct system). A finer yarn has a higher indirect number and a lower direct number.
Is the tex to Ne 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 , Cotton count (Ne).
- 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 Tex to English Cotton Count (tex to Ne). Retrieved October 25, 2026, from https://scientificconverters.com/yarn-count/tex-to-ne/
IEEE
Scientific Converters, "Convert Tex to English Cotton Count (tex to Ne)," scientificconverters.com. Accessed: Oct. 25, 2026. [Online]. Available: https://scientificconverters.com/yarn-count/tex-to-ne/