Convert Denier to English Cotton Count (den to Ne)
Denier and English cotton count are inversely related: Ne = 5314.871227 ÷ den, so 150 den = 35.43247485 Ne.
Also searched as denier to Ne, denier in Ne, denier into English cotton count, den to Ne, den in English cotton count, den into English cotton count, denier to English cotton count and den to English cotton count converter.
1 den = 5314.871227 Ne
Type in either box. Scientific notation works: 1.5e-3.
Converting a list? Use the bulk denier to Ne converter to paste a column from Excel.
How to Convert Denier to English Cotton Count
- Ne = 5314.871227 ÷ den
- den = 5314.871227 ÷ Ne
- Example: convert 150 den to Ne: 5314.871227 ÷ 150 = 35.43247485 Ne
Formula
Ne = 5314.871227034 ÷ den
Derivation from SI units:
- 1 den = 1 g per 9000 m = 1/9 tex ≈ 1.111 × 10⁻⁷ 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 = 5314.871227034 ÷ den (a higher den means a lower Ne)
Both units are defined exactly, so the factor is exact. Denier definition: denier; English Cotton Count definition: English cotton count.
Worked examples
- A 150 den filament yarn is equivalent to 35.43247485 Ne.
5314.871227 ÷ 150 = 35.43247485 Ne - A 75 den yarn is equivalent to 70.86494969 Ne.
5314.871227 ÷ 75 = 70.86494969 Ne
Denier to English Cotton Count conversion table
| Denier (den) | English Cotton Count (Ne) |
|---|---|
| 10 den | 531.4871227 Ne |
| 15 den | 354.3247485 Ne |
| 20 den | 265.7435614 Ne |
| 30 den | 177.1623742 Ne |
| 40 den | 132.8717807 Ne |
| 50 den | 106.2974245 Ne |
| 70 den | 75.92673181 Ne |
| 75 den | 70.86494969 Ne |
| 100 den | 53.14871227 Ne |
| 150 den | 35.43247485 Ne |
| 210 den | 25.3089106 Ne |
| 420 den | 12.6544553 Ne |
| 840 den | 6.327227651 Ne |
| 1000 den | 5.314871227 Ne |
Where it's used
Filament yarns in denier are converted to cotton count (Ne) to match spun yarns of the same fineness in blends and fabric constructions. Divide 5315 by the denier.
Denier to other yarn count units
| Conversion | 1 den equals |
|---|---|
| denier to Ne | 5314.871227 Ne |
| denier to tex | 0.1111111111 tex |
| denier to decitex | 1.111111111 dtex |
| denier to Nm | 9000 Nm |
| denier to Nw | 7972.306841 Nw |
| denier to kilotex | 0.0001111111111 ktex |
| denier to woollen count | 17439.42121 NY |
| denier to linen lea | 14881.63944 NeL |
Show 1 more units
| denier to kilogram per metre | 1.111111111 × 10⁻⁷ kg/m |
|---|
Frequently asked questions
Which cotton count matches 150 denier?
150 den = 35.43247485 Ne, so roughly a 35s cotton yarn.
What is the formula for denier to English cotton count?
Ne = 5314.871227 ÷ den. The two systems are inversely related, so divide the constant by the value; do not multiply. For example, 5314.871227 ÷ 150 = 35.43247485 Ne.
Why does a higher den give a lower Ne?
English Cotton Count counts length per unit mass (an indirect system), while denier counts mass per unit length (a direct system). A finer yarn has a higher indirect number and a lower direct number.
Is the den 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
- ASTM D2260, Standard Tables of Conversion Factors and Equivalent Yarn Numbers Measured in Various Numbering Systems, ASTM International , Denier system.
- 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".
- ASTM D2260, Standard Tables of Conversion Factors and Equivalent Yarn Numbers Measured in Various Numbering Systems, ASTM International , Cotton count (Ne).
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 Denier to English Cotton Count (den to Ne). Retrieved October 25, 2026, from https://scientificconverters.com/yarn-count/denier-to-ne/
IEEE
Scientific Converters, "Convert Denier to English Cotton Count (den to Ne)," scientificconverters.com. Accessed: Oct. 25, 2026. [Online]. Available: https://scientificconverters.com/yarn-count/denier-to-ne/