Denier to Ne Converter
Turn a filament yarn's denier into English cotton count (Ne), so polyester filament and spun cotton can be compared on one scale.
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Constants from ASTM D2260 and the exact yard and pound. Checked 9 November 2026.
Your yarn
Unit you have
Denier: grams per 9,000 m
Convert to
English cotton count (Ne): 840-yard hanks per pound
For filament yarn: the 36 in 75/36 or the f48 in dtex 167 f48.
Converted count
75 denier in Ne
70.86 Ne
Ne = 5,314.87 ÷ denier5,314.87 ÷ 75 = 70.86
Every unit
- Denierwhat you entered
- 75 denier
- Texgrams per 1,000 m
- 8.333 tex
- Decitex (dtex)grams per 10,000 m
- 83.33 dtex
- English cotton count (Ne)840-yard hanks per pound
- 70.86 Ne
- Metric count (Nm)km per kg (metres per gram)
- 120 Nm
- Worsted count (Nw)560-yard hanks per pound
- 106.3 Nw
- Yorkshire woollen count (Ny)256-yard skeins per pound
- 232.5 Ny
Higher denier, tex or dtex means a thicker yarn. Higher Ne, Nm, Nw or Ny means a finer one.
Denier to Ne chart
| Denier | Ne | Nm |
|---|---|---|
| 354.3 | 600 | |
| 265.7 | 450 | |
| 212.6 | 360 | |
| 177.2 | 300 | |
| 132.9 | 225 | |
| 106.3 | 180 | |
| 88.58 | 150 | |
| 75.93 | 128.6 | |
| 70.86 | 120 | |
| 66.44 | 112.5 | |
| 53.15 | 90 | |
| 44.29 | 75 | |
| 35.43 | 60 | |
| 26.57 | 45 | |
| 21.26 | 36 | |
| 17.72 | 30 |
Tap a value in the first column to load it into the converter.
How to use it
Type the count in denier, for example 75.
Read the Ne on the right, with every other unit listed under it.
Or tap a value in the Denier to Ne chart to load it.
Denier to Ne: when you need it
Surat weavers buy polyester and nylon filament by denier, while spinners and many fabric buyers think in English cotton count: 30s, 40s, 60s. Converting denier to Ne puts both on one scale. It helps when you replace a spun weft with filament, or explain a filament quality to a buyer who only knows cotton counts.
The two systems run in opposite directions. Denier is the weight in grams of 9,000 metres, so a bigger number is a thicker yarn. Ne is the number of 840-yard hanks in one pound, so a bigger number is a finer yarn. That is why the formula divides: double the denier and the Ne halves.
Formula: Ne = 5,314.87 ÷ denier
5,314.87 is 9 × 590.54. Dividing by 9 turns denier into tex, and 590.54 ÷ tex gives Ne. Many charts round the constant to 5,315, which changes answers only in the second decimal.
Worked example
75 denier: 5,314.87 ÷ 75 = 70.86 Ne.
More conversions
To go the other way, use the Ne to Denier converter. To see one count in all seven units at once, including worsted and woollen counts, open the yarn count converter. To estimate fabric weight from yarn counts, try the fabric GSM calculator.
Sources: ASTM D2260, Standard Tables of Conversion Factors and Equivalent Yarn Numbers (current edition D2260-24); ISO 1144:2016, the tex system. Checked 9 November 2026.
FAQ
Questions
What is 75 denier in Ne?
75 denier is 70.86 Ne (5,314.87 ÷ 75). By weight per metre that is close to a 70s cotton yarn, though a filament yarn and a spun yarn of the same count still differ in bulk, cover and feel.
How do I convert denier to Ne?
Divide 5,314.87 by the denier. For 150 denier: 5,314.87 ÷ 150 = 35.43 Ne. Charts that use 5,315 give the same answer to two decimals.
Why does a bigger denier give a smaller Ne?
Denier is a direct count (grams per 9,000 m), so it rises as the yarn gets thicker. Ne is an indirect count (hanks per pound), so it falls. 50 denier is 106.3 Ne, a fine yarn; 600 denier is 8.858 Ne, a coarse one.
What Ne are 100 and 200 denier?
100 denier is 53.15 Ne and 200 denier is 26.57 Ne. When the denier doubles, the Ne halves.
Which cotton count matches 150 denier polyester?
150 denier works out to 35.43 Ne, so by weight per metre it sits between a 34s and a 36s cotton yarn. Use the match to compare yarn weight and cost per metre, not to predict how the fabric will look.
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