Input Measurements
Live Auto-Calculation
Output Summary
Verified Spec
Calculating...
Initial output value
Tex (Universal Metric)
19.68 Tex
Denier (Silk & Synthetics)
177.2 Denier
Metric Count (Nm)
50.80 Nm
Decitex (dtex)
196.8 Dtex
✓ Copied to clipboard!
⭐ Recommended Industry Resource
Source professional yarn winding, fiber spinning, and weaving equipment from verified fiber suppliers.
Explore Verified Standards →
How to Use the Yarn Count Converter (Ne, Nm, Tex, Denier, Dtex)
- Select your desired options and garment / fabric specifications from the input fields above.
- Enter your measurements with high precision using the labeled unit selectors (inches, centimeters, or grams).
- Review the live calculation summary in the prominent result card to confirm fabric yardage, cuts, or conversions.
- Use the "Copy Specification" button to save your cutting specification to your tech pack or pattern notes.
Documented Textile Industry Formula
Yarn Numbering Conversion Formulas
- Direct Systems (Weight per unit length - higher number = thicker yarn):
- Tex = grams per 1,000 meters
- Denier = grams per 9,000 meters (Denier = Tex × 9)
- Dtex = grams per 10,000 meters (Dtex = Tex × 10)
- Indirect Systems (Length per unit weight - higher number = finer yarn):
- English Cotton (Ne) = 840-yard hanks per pound (Ne = 590.54 / Tex)
- Metric Count (Nm) = kilometers per kilogram (Nm = 1000 / Tex = Ne × 1.6934)
Worked Calculation Example
Real-World Scenario: Converting standard 30s single cotton yarn (30 Ne).
- • Tex = 590.54 / 30 = 19.68 Tex
- • Denier = 19.68 × 9 = 177.16 Denier
- • Metric (Nm) = 30 × 1.6934 = 50.80 Nm
- • Dtex = 19.68 × 10 = 196.85 Dtex
A 30 Ne yarn corresponds to 19.68 Tex, 177.16 Denier, and 50.80 Nm.
Frequently Asked Questions
What is the difference between direct and indirect yarn counts?
Direct systems (Tex, Denier) measure weight per unit length; higher numbers mean thicker yarn. Indirect systems (Ne, Nm) measure length per unit weight; higher numbers mean finer, thinner yarn.
What does 30/1 or 30s cotton yarn mean?
'30/1' or '30s' indicates a 30 Ne single-ply yarn. It is the gold-standard yarn used for soft, high-quality combed cotton t-shirts.
Why is Tex considered the international textile standard?
ISO established the Tex system to unify global textile trade, replacing fragmented regional systems like English Cotton, Woolen Run, and French Metric.