Convert Decitex to Denier (dtex to den)
1 decitex (dtex) = 0.9 denier (den). 1 den = 1.111111111 dtex. Example: 167 dtex = 167 × 0.9 = 150.3 den.
Also searched as decitex to den, decitex in den, decitex into denier, dtex to den, dtex in denier, dtex into denier, decitex to denier, dtex to denier converter and how many denier in a decitex.
1 dtex = 0.9 den
Type in either box. Scientific notation works: 1.5e-3.
Converting a list? Use the bulk decitex to denier converter to paste a column from Excel.
How to Convert Decitex to Denier
- 1 dtex = 0.9 den
- 1 den = 1.111111111 dtex
- Example: convert 167 dtex to den: 167 dtex = 167 × 0.9 den = 150.3 den
Formula
den = dtex × 0.9
or den = dtex ÷ 1.111111111111
Derivation from SI units:
- 1 dtex = 1 g per 10 000 m = 0.1 tex = 10⁻⁷ kg/m (exact)
- 1 den = 1 g per 9000 m = 1/9 tex ≈ 1.111 × 10⁻⁷ kg/m (exact)
- 1 dtex = 1 × 10⁻⁷ kg/m ÷ 1.111111111111 × 10⁻⁷ kg/m per den = 0.9 den
Both units are defined exactly, so the factor is exact. Decitex definition: decitex; Denier definition: denier.
Worked examples
- A 167 dtex polyester yarn is 150.3 den.
167 dtex × 0.9 = 150.3 den - A 1.7 dtex staple fibre is 1.53 den.
1.7 dtex × 0.9 = 1.53 den
Decitex to Denier conversion table
| Decitex (dtex) | Denier (den) |
|---|---|
| 11 dtex | 9.9 den |
| 22 dtex | 19.8 den |
| 33 dtex | 29.7 den |
| 44 dtex | 39.6 den |
| 56 dtex | 50.4 den |
| 78 dtex | 70.2 den |
| 110 dtex | 99 den |
| 167 dtex | 150.3 den |
| 235 dtex | 211.5 den |
| 330 dtex | 297 den |
| 550 dtex | 495 den |
| 1100 dtex | 990 den |
Where it's used
Filament and fibre linear densities in decitex (grams per 10 000 m), common in Europe, are converted to denier for US and Asian specifications. Multiply by 0.9.
Decitex to other yarn count units
| Conversion | 1 dtex equals |
|---|---|
| decitex to denier | 0.9 den |
| decitex to tex | 0.1 tex |
| decitex to Ne | 5905.412474 Ne |
| decitex to Nm | 10000 Nm |
| decitex to Nw | 8858.118712 Nw |
| decitex to kilotex | 0.0001 ktex |
| decitex to woollen count | 19377.13468 NY |
| decitex to linen lea | 16535.15493 NeL |
Show 1 more units
| decitex to kilogram per metre | 1 × 10⁻⁷ kg/m |
|---|
Frequently asked questions
Is dtex the same as denier?
Nearly: 1 dtex = 0.9 den exactly, so 167 dtex is 150 den.
How many denier are in 1 decitex?
1 dtex = 0.9 den.
How do I convert decitex to denier?
Multiply the value in dtex by 0.9, or divide it by 1.111111111. For example, 167 dtex × 0.9 = 150.3 den.
Is the dtex to den 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 , 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".
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 Decitex to Denier (dtex to den). Retrieved October 25, 2026, from https://scientificconverters.com/yarn-count/decitex-to-denier/
IEEE
Scientific Converters, "Convert Decitex to Denier (dtex to den)," scientificconverters.com. Accessed: Oct. 25, 2026. [Online]. Available: https://scientificconverters.com/yarn-count/decitex-to-denier/