Linear Density Converter
Convert between tex, denier, dtex, and kg/m for yarn, fiber, and thread linear density.
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Linear density measures the mass of a fiber or yarn per unit length. It is the standard way to describe thread and yarn thickness in the textile industry.
All conversions use tex as the base unit.
Key units:
- Tex = grams per 1,000 meters (ISO standard)
- Decitex (dtex) = grams per 10,000 meters = tex ÷ 10
- Denier (den) = grams per 9,000 meters = tex × 9
- kg/m = tex ÷ 1,000,000
Conversion formulas:
- 1 tex = 9 denier
- 1 tex = 10 dtex
- 1 denier = 0.1111 tex
- 1 dtex = 0.1 tex
Common fiber reference values:
| Fiber | Denier | Tex |
|---|---|---|
| Microfiber | <1 | <0.11 |
| Silk (single strand) | 1 | 0.11 |
| Nylon stocking | 10–15 | 1.1–1.7 |
| Cotton thread | 20–40 | 2.2–4.4 |
| Carpet fiber | 15–24 | 1.7–2.7 |
Denier is common in North America for consumer products. Tex and dtex are the ISO standard used in technical specifications.