Decitex (dtex)
The decitex is the mass in grams of 10 000 metres of filament or fibre, one tenth of a tex. It is close to the denier (1 dtex = 0.9 den) and is the usual metric unit for filament yarns and fibres.
Symbol: dtex
Quantity: yarn count (linear density of yarns and fibres)
SI relation: 1 dtex = 1 × 10⁻⁷ kg/m (exact)
Derivation: 1 dtex = 1 g per 10 000 m = 0.1 tex = 10⁻⁷ kg/m (exact)
Exact: yes, by definition
Typical uses
- Polyester and nylon filament yarns (for example 167 dtex)
- Elastane and fine fibres
- European technical data sheets
Convert decitex to other units
| Conversion | 1 dtex equals | Reverse |
|---|---|---|
| decitex to tex | 0.1 tex | tex to decitex |
| decitex to denier | 0.9 den | denier to decitex |
| decitex to Ne | 5905.412474 Ne | Ne to decitex |
| decitex to Nm | 10000 Nm | Nm to decitex |
| decitex to Nw | 8858.118712 Nw | Nw to decitex |
| decitex to kilotex | 0.0001 ktex | kilotex to decitex |
| decitex to woollen count | 19377.13468 NY | woollen count to decitex |
| decitex to linen lea | 16535.15493 NeL | linen lea to decitex |
| decitex to kilogram per metre | 1 × 10⁻⁷ kg/m | kilogram per metre to decitex |
Open the Yarn Count Converter to convert any value between all units.
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). Decitex (dtex). Retrieved October 25, 2026, from https://scientificconverters.com/units/decitex/
IEEE
Scientific Converters, "Decitex (dtex)," scientificconverters.com. Accessed: Oct. 25, 2026. [Online]. Available: https://scientificconverters.com/units/decitex/