Quick answer
What is Tex?
Tex is the weight in grams of 1,000 metres of yarn — the SI standard for linear density.
dtex = Tex × 10
How it works
Tex Converter
Convert between Tex-family units and Denier for yarns and filaments.
Tex is grams per 1,000 metres; dtex per 10,000 m; Denier per 9,000 m.
Formula
The formula, in full
- dtex
- Tex × 10
- ktex
- Tex ÷ 1000
- Denier
- Tex × 9
Example
20 tex
- 01dtex = 200
- 02Denier = 180
- 03Ne = 29.5
Use “Load Example” above to run this example in the calculator.
Industry tip
Industry tip
“Sliver and roving are usually expressed in ktex.”
FAQ
Frequently asked questions
What is Tex?
Tex is the weight in grams of 1,000 metres of yarn — the SI standard for linear density.
Formula and worked example checked by the TextileSuite team on 17 October 2026. Results are planning estimates — confirm critical numbers against your own samples and lab reports.