Quick answer
How do I convert Ne to Tex?
Tex = 590.5 ÷ Ne. For 40s Ne: 590.5 ÷ 40 = 14.76 tex.
Tex = 590.5 ÷ Ne = 1000 ÷ Nm = Denier ÷ 9
How it works
Yarn Count Converter
Convert any yarn count across direct (Tex, Denier) and indirect (Ne, Nm) systems in one step.
Every system is converted to Tex (grams per 1,000 m) and then into all other systems. Direct systems rise with thickness; indirect systems fall.
Formula
The formula, in full
- Tex
- 590.5 ÷ Ne = 1000 ÷ Nm = Denier ÷ 9
- Ne
- 590.5 ÷ Tex = Nm × 0.5905
- Nm
- 1000 ÷ Tex = Ne × 1.6934
- Denier
- Tex × 9 = 5315 ÷ Ne
- dtex
- Tex × 10
Example
30s Ne cotton
- 01Tex = 590.5 ÷ 30 = 19.68
- 02Nm = 50.80
- 03Denier = 177.2
Use “Load Example” above to run this example in the calculator.
Industry tip
Industry tip
“Ne and Nm are indirect — a higher number means a finer yarn. Tex and Denier are direct — a higher number means a coarser yarn.”
Assumptions
What this calculator assumes
- Ne constant 590.5 (cotton system).
FAQ
Frequently asked questions
How do I convert Ne to Tex?
Tex = 590.5 ÷ Ne. For 40s Ne: 590.5 ÷ 40 = 14.76 tex.
What is the difference between direct and indirect count?
Direct systems (Tex, Denier) measure weight per fixed length; indirect systems (Ne, Nm) measure length per fixed weight.
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.