Convert Tex to Decitex (tex to dtex)
1 tex = 10 decitex (dtex). 1 dtex = 0.1 tex. Example: 15 tex = 15 × 10 = 150 dtex.
Also searched as tex to dtex, tex in dtex, tex into decitex, tex in decitex, tex to decitex, tex to decitex converter and how many decitex in a tex.
1 tex = 10 dtex
Type in either box. Scientific notation works: 1.5e-3.
Converting a list? Use the bulk tex to decitex converter to paste a column from Excel.
How to Convert Tex to Decitex
- 1 tex = 10 dtex
- 1 dtex = 0.1 tex
- Example: convert 15 tex to dtex: 15 tex = 15 × 10 dtex = 150 dtex
Formula
dtex = tex × 10
Derivation from SI units:
- 1 tex = 1 g per 1000 m = 10⁻⁶ kg/m (exact)
- 1 dtex = 1 g per 10 000 m = 0.1 tex = 10⁻⁷ kg/m (exact)
- 1 tex = 0.000001 kg/m ÷ 1 × 10⁻⁷ kg/m per dtex = 10 dtex
Both units are defined exactly, so the factor is exact. Tex definition: tex; Decitex definition: decitex.
Worked examples
- A reading of 16.4 tex converts to 164 dtex.
16.4 tex × 10 = 164 dtex - A value of 37 tex is 370 dtex.
37 tex × 10 = 370 dtex
Tex to Decitex conversion table
| Tex | Decitex (dtex) |
|---|---|
| 5 tex | 50 dtex |
| 7.4 tex | 74 dtex |
| 10 tex | 100 dtex |
| 14.76 tex | 147.6 dtex |
| 16.4 tex | 164 dtex |
| 20 tex | 200 dtex |
| 25 tex | 250 dtex |
| 29.5 tex | 295 dtex |
| 37 tex | 370 dtex |
| 50 tex | 500 dtex |
| 59 tex | 590 dtex |
| 100 tex | 1000 dtex |
Where it's used
Tex are used for yarn specifications in metric countries, while decitex appear in polyester and nylon filament yarns (for example 167 dtex). Both measure yarn count (linear density of yarns and fibres), so the conversion is a fixed factor.
Tex to other yarn count units
| Conversion | 1 tex equals |
|---|---|
| tex to decitex | 10 dtex |
| tex to denier | 9 den |
| tex to Ne | 590.5412474 Ne |
| 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
How many decitex are in 1 tex?
1 tex = 10 dtex.
How do I convert tex to decitex?
Multiply the value in tex by 10. For example, 15 tex × 10 = 150 dtex.
Is the tex to dtex conversion exact?
Yes. Both units are defined exactly, and 1 tex is exactly 10 dtex.
Sources
- 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 Tex to Decitex (tex to dtex). Retrieved October 25, 2026, from https://scientificconverters.com/yarn-count/tex-to-decitex/
IEEE
Scientific Converters, "Convert Tex to Decitex (tex to dtex)," scientificconverters.com. Accessed: Oct. 25, 2026. [Online]. Available: https://scientificconverters.com/yarn-count/tex-to-decitex/