Skip to main content

Convert Denier to Tex

Instantly convert Denier (den) to Tex (tex) with our free online calculator.

Reviewed by Christopher FloiedUpdated

Formula: den to texmultiply by 0.11111

Reference Table

Denier (den)Tex (tex)
10.11111
50.55555
101.1111
252.77775
505.5555
10011.111

How to Convert Denier to Tex

Formula

To convert Denier (den) to Tex (tex): multiply by 0.11111

Step-by-Step

  1. Start with your value in Denier (den).
  2. Multiply by 0.11111 to perform the conversion.
  3. The result is your value expressed in Tex (tex).

Conversion Factor

1 den = 0.11111 tex

Reverse Factor

1 tex = 9.00009 den

Worked Example

Convert 25 Denier to Tex: 25 den = 2.77775 tex

About Denier (den)

A textile-industry linear-density unit equal to exactly grams per 9,000 meters of fiber or yarn (≈ 1.111 × 10⁻⁷ kg/m = 0.1111 tex). The 9,000-meter basis is preserved from the historic Lyon, France silk-trade measurement standard. Denier ('den' or simply 'D') is the everyday consumer-textile fineness unit: pantyhose and nylon-stocking weight ratings (10-15 den ultra-sheer; 20-40 den medium; 40-80 den opaque; 100-200 den support hosiery), fishing-line braided ratings (Sufix 832, PowerPro, Daiwa J-Braid product lines list denier alongside lb-test), parachute-cord and military 550-cord nylon ripstop fabric per MIL-DTL-32439 (210D - 1680D ranges), outdoor-gear rip-stop nylon and Cordura fabric specifications (Cordura 1000D is the rugged standard for backpacks and tactical equipment; 500D and 330D are lighter weights; Cordura HP and TrueLock have engineered variants), and silk-fabric weight ratings (4.5-8 momme silk shirting; 35+ momme heavyweight silk). 1 denier ≈ 0.111 tex ≈ 1.111 × 10⁻⁷ kg/m.

About Tex (tex)

A textile-industry linear-density unit equal to exactly grams per 1,000 meters of fiber or yarn (= 10⁻⁶ kg/m = 1 mg/m). Tex is the ISO-standard fiber-fineness unit worldwide per ISO 2060 'Yarn from Packages — Determination of Linear Density (Mass per Unit Length)'. Used universally in: tire-cord industry per ASTM D885 (polyester tire cord 1,100-1,650 tex; rayon cord 1,840-2,750 tex; aramid/Kevlar cord 1,580-2,840 tex; steel-wire tire-belt 4,400 tex), industrial belting and conveyor-belt reinforcement fabrics, carpet and rug yarn (Berber loop-pile typical 2,000-5,000 tex; nylon BCF 1,400 tex), sewing-thread and embroidery-thread specifications, polypropylene woven slings for material handling, and continuous-filament-yarn (CFY) manufacturing. Direct measurement principle: weigh 1,000 m of the fiber under standardized 20 °C / 65% RH atmosphere per ISO 139, heavier fiber = higher tex. Convert tex to g/km (numerically identical); to denier by multiplying by 9; to kg/m by dividing by 10⁶.

Quick Facts

  • 1 Denier equals 0.11111 Tex
  • 1 Tex equals 9.00009 Denier
  • Denier is a unit of linear density
  • Tex is a unit of linear density
  • This conversion is commonly used in textile manufacturing, cable engineering, and structural analysis

Common Denier to Tex Conversions

Denier (den)Tex (tex)
0.010.0011111
0.10.011111
0.250.0277775
0.50.055555
10.11111
20.22222
30.33333
50.55555
101.1111
151.66665
202.2222
252.77775
505.5555
758.33325
10011.111
25027.7775
50055.555
1000111.11
5000555.55
100001111.1

Understanding Denier

The Denier (symbol: den) is a unit of linear density. A textile-industry linear-density unit equal to exactly grams per 9,000 meters of fiber or yarn (≈ 1.111 × 10⁻⁷ kg/m = 0.1111 tex). The 9,000-meter basis is preserved from the historic Lyon, France silk-trade measurement standard. Denier ('den' or simply 'D') is the everyday consumer-textile fineness unit: pantyhose and nylon-stocking weight ratings (10-15 den ultra-sheer; 20-40 den medium; 40-80 den opaque; 100-200 den support hosiery), fishing-line braided ratings (Sufix 832, PowerPro, Daiwa J-Braid product lines list denier alongside lb-test), parachute-cord and military 550-cord nylon ripstop fabric per MIL-DTL-32439 (210D - 1680D ranges), outdoor-gear rip-stop nylon and Cordura fabric specifications (Cordura 1000D is the rugged standard for backpacks and tactical equipment; 500D and 330D are lighter weights; Cordura HP and TrueLock have engineered variants), and silk-fabric weight ratings (4.5-8 momme silk shirting; 35+ momme heavyweight silk). 1 denier ≈ 0.111 tex ≈ 1.111 × 10⁻⁷ kg/m.

Denier are commonly used in textile manufacturing, cable engineering, and structural analysis.

Understanding Tex

The Tex (symbol: tex) is a unit of linear density. A textile-industry linear-density unit equal to exactly grams per 1,000 meters of fiber or yarn (= 10⁻⁶ kg/m = 1 mg/m). Tex is the ISO-standard fiber-fineness unit worldwide per ISO 2060 'Yarn from Packages — Determination of Linear Density (Mass per Unit Length)'. Used universally in: tire-cord industry per ASTM D885 (polyester tire cord 1,100-1,650 tex; rayon cord 1,840-2,750 tex; aramid/Kevlar cord 1,580-2,840 tex; steel-wire tire-belt 4,400 tex), industrial belting and conveyor-belt reinforcement fabrics, carpet and rug yarn (Berber loop-pile typical 2,000-5,000 tex; nylon BCF 1,400 tex), sewing-thread and embroidery-thread specifications, polypropylene woven slings for material handling, and continuous-filament-yarn (CFY) manufacturing. Direct measurement principle: weigh 1,000 m of the fiber under standardized 20 °C / 65% RH atmosphere per ISO 139, heavier fiber = higher tex. Convert tex to g/km (numerically identical); to denier by multiplying by 9; to kg/m by dividing by 10⁶.

Tex are commonly used in textile manufacturing, cable engineering, and structural analysis.

Why Convert Denier to Tex?

Converting between Denier and Tex is a frequent requirement for engineers, scientists, and students working with linear density values. Different industries and regions favour different unit systems, so having a dependable conversion tool saves time and prevents errors in technical calculations. Whether you are verifying a specification sheet, cross-checking simulation results, or preparing a report for an international audience, accurate linear density conversion is essential.

Frequently Asked Questions

How do I convert Denier to Tex?

A textile-industry linear-density unit equal to exactly grams per 9,000 meters of fiber or yarn (≈ 1. To convert Denier to Tex, multiply by 0.11111. For example, 25 den equals 2.77775 tex.

How many Tex are in 1 Denier?

There are 0.11111 Tex in 1 Denier.

How many Denier are in 1 Tex?

There are 9.00009 Denier in 1 Tex.

What is the formula for Denier to Tex conversion?

The formula is: multiply by 0.11111. This means 1 den = 0.11111 tex.

Is a Denier bigger than a Tex?

Yes. One Denier is larger than one Tex because 1 den equals 0.11111 tex, which is less than 1.

When do you need to convert between Denier and Tex?

A textile-industry linear-density unit equal to exactly grams per 1,000 meters of fiber or yarn (= 10⁻⁶ kg/m = 1 mg/m). Denier and Tex are both linear density units, so conversion comes up whenever one source of information uses one unit and another uses the other — a classic cross-reference challenge in engineering, trade, travel, and everyday life.

More Linear Density Conversions

Related Tools