Queendom Tools

Yarn Count Converter

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for preliminary estimation only, not a substitute for review by a qualified/licensed engineer.

About This Yarn Count Converter

For quality-control technicians in spinning, winding and yarn-trading labs who must cross-check a supplier's Ne or denier figure against the tex value on an internal spec sheet. This tool performs a yarn count conversion between English cotton count Ne, metric count Nm, tex, decitex and denier. One entry gives all five counts at once, replacing four separate hand calculations. The converter works by first deriving the tex value (tex = 590.5 / Ne = 1000 / Nm, denier = 9 x tex), then converting that tex value to all other common linear density units. This provides a fast, accurate way to compare different yarn specifications.

How to Use This Converter

  1. Type the yarn's count into the number field (for example 30 for a Ne 30 cotton yarn).
  2. Choose the system that value is expressed in from the dropdown: Ne, Nm, tex, dtex or denier.
  3. Read all five results directly below — tex, dtex and denier alongside the two indirect counts Ne and Nm.
  4. Change the number or pick a different input system to compare the same yarn in another count.

FAQ

Q: How do I convert Ne 30 cotton count to tex?

A: tex = 590.5 ÷ Ne, so 590.5 ÷ 30 = 19.68 tex, which the converter reports together with 196.8 dtex, 177.2 denier and Nm 50.8.

Q: What is the difference between tex and decitex?

A: Decitex is exactly ten times tex (dtex = 10 × tex), so a 19.68 tex yarn is 196.8 dtex — the same yarn, just a finer-grained number.

Q: How many denier is 40 tex?

A: denier = 9 × tex, so 40 tex = 360 denier, and the same yarn reads 400 dtex and Ne 14.76.

Q: Is this converter a substitute for ASTM D1907 testing?

A: No — it is for preliminary estimation only and is not a substitute for review by a qualified/licensed engineer; use it to sanity-check a count, not to certify a yarn.