Convert Denier to Kilotex (den to ktex)
1 denier (den) = 0.0001111111111 kilotex (ktex). 1 ktex = 9000 den. Example: 15 den = 15 × 0.0001111111111 = 0.001666666667 ktex.
Also searched as denier to ktex, denier in ktex, denier into kilotex, den to ktex, den in kilotex, den into kilotex, denier to kilotex, den to kilotex converter and how many kilotex in a denier.
1 den = 0.0001111111111 ktex
Type in either box. Scientific notation works: 1.5e-3.
Converting a list? Use the bulk denier to kilotex converter to paste a column from Excel.
How to Convert Denier to Kilotex
- 1 den = 0.0001111111111 ktex
- 1 ktex = 9000 den
- Example: convert 15 den to ktex: 15 den = 15 × 0.0001111111111 ktex = 0.001666666667 ktex
Formula
ktex = den × 0.0001111111111111
or ktex = den ÷ 9000
Derivation from SI units:
- 1 den = 1 g per 9000 m = 1/9 tex ≈ 1.111 × 10⁻⁷ kg/m (exact)
- 1 ktex = 1 g per metre = 1000 tex = 10⁻³ kg/m (exact)
- 1 den = 1.111111111111 × 10⁻⁷ kg/m ÷ 0.001 kg/m per ktex = 0.0001111111111111 ktex
Both units are defined exactly, so the factor is exact. Denier definition: denier; Kilotex definition: kilotex.
Worked examples
- A reading of 40 den converts to 0.004444444444 ktex.
40 den × 0.0001111111111 = 0.004444444444 ktex - A value of 150 den is 0.01666666667 ktex.
150 den × 0.0001111111111 = 0.01666666667 ktex
Denier to Kilotex conversion table
| Denier (den) | Kilotex (ktex) |
|---|---|
| 10 den | 0.001111111111 ktex |
| 15 den | 0.001666666667 ktex |
| 20 den | 0.002222222222 ktex |
| 30 den | 0.003333333333 ktex |
| 40 den | 0.004444444444 ktex |
| 50 den | 0.005555555556 ktex |
| 70 den | 0.007777777778 ktex |
| 75 den | 0.008333333333 ktex |
| 100 den | 0.01111111111 ktex |
| 150 den | 0.01666666667 ktex |
| 210 den | 0.02333333333 ktex |
| 420 den | 0.04666666667 ktex |
| 840 den | 0.09333333333 ktex |
| 1000 den | 0.1111111111 ktex |
Where it's used
Denier are used for hosiery and tights (for example 15–40 den), while kilotex appear in card and draw-frame sliver (about 3–5 ktex). Both measure yarn count (linear density of yarns and fibres), so the conversion is a fixed factor.
Denier to other yarn count units
| Conversion | 1 den equals |
|---|---|
| denier to kilotex | 0.0001111111111 ktex |
| denier to tex | 0.1111111111 tex |
| denier to Ne | 5314.871227 Ne |
| denier to decitex | 1.111111111 dtex |
| denier to Nm | 9000 Nm |
| denier to Nw | 7972.306841 Nw |
| 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
How many kilotex are in 1 denier?
1 den = 0.0001111111111 ktex.
How do I convert denier to kilotex?
Multiply the value in den by 0.0001111111111, or divide it by 9000. For example, 15 den × 0.0001111111111 = 0.001666666667 ktex.
Is the den to ktex 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".
- ISO 1144, Textiles — Universal system for designating linear density (Tex System), International Organization for Standardization , Tex system.
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 Kilotex (den to ktex). Retrieved October 25, 2026, from https://scientificconverters.com/yarn-count/denier-to-kilotex/
IEEE
Scientific Converters, "Convert Denier to Kilotex (den to ktex)," scientificconverters.com. Accessed: Oct. 25, 2026. [Online]. Available: https://scientificconverters.com/yarn-count/denier-to-kilotex/