Yarn count converter

Nm to Ne Converter

Convert metric count, used for wool, linen and European yarns, into the English cotton count (Ne) used in India.

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Constants from ASTM D2260 and the exact yard and pound. Checked 9 November 2026.

Your yarn

Count

Unit you have

Metric count (Nm): km per kg (metres per gram)

Convert to

English cotton count (Ne): 840-yard hanks per pound

Converted count

50 Nm in Ne

29.53 Ne

Ne = Nm × 0.590550 × 0.5905 = 29.53

Every unit

Deniergrams per 9,000 m: 180 denier
Texgrams per 1,000 m: 20 tex
Decitex (dtex)grams per 10,000 m: 200 dtex
English cotton count (Ne)840-yard hanks per pound: 29.53 Ne
Metric count (Nm)what you entered: 50 Nm
Worsted count (Nw)560-yard hanks per pound: 44.29 Nw
Yorkshire woollen count (Ny)256-yard skeins per pound: 96.89 Ny

Higher denier, tex or dtex means a thicker yarn. Higher Ne, Nm, Nw or Ny means a finer one.

Nm to Ne chart

Nm	Ne	Tex
	5.905	100
	8.268	71.43
	10.04	58.82
	11.81	50
	14.17	41.67
	16.54	35.71
	17.72	33.33
	20.08	29.41
	23.62	25
	28.35	20.83
	29.53	20
	35.43	16.67
	37.79	15.63
	40.16	14.71
	47.24	12.5
	59.05	10

Tap a value in the first column to load it into the converter.

How to use it

Type the count in Nm, for example 50.
Read the Ne on the right, with every other unit listed under it.
Or tap a value in the Nm to Ne chart to load it.

Nm to Ne: when you need it

Metric count (Nm) is the number of kilometres in one kilogram of yarn, so Nm 50 means 50 km weigh 1 kg. It is common for wool, linen and yarn from European mills, while the Indian cotton trade uses Ne.

Both are indirect systems, so in each a bigger number is a finer yarn, and the ratio between them never changes: 1 Ne is 1.6934 Nm.

Formula: Ne = Nm × 0.5905

Ne = Nm × 0.5905, which is the same as Nm ÷ 1.6934. The factor is 590.54 ÷ 1,000: Ne × tex = 590.54 and Nm × tex = 1,000.

Worked example

50 Nm: 50 × 0.5905 = 29.53 Ne.

More conversions

To go the other way, use the Ne to Nm 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.

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FAQ

Questions

How do I convert Nm to Ne?

Multiply by 0.5905 (or divide by 1.6934): Ne = Nm × 0.5905. Nm 50 × 0.5905 = 29.53 Ne.

What is Nm 68 in Ne?

40.16 Ne. Nm 68 is the whole metric count closest to a 40s cotton yarn, which is Nm 67.73.

What does Nm 2/48 mean?

Two plies of Nm 48 yarn. Each ply is 28.35 Ne, and the plied yarn behaves like a single Nm 24, which is 14.17 Ne.

Is Nm the same as metres per gram?

Yes. Nm counts kilometres per kilogram, which is the same number as metres per gram. Nm 50 yarn has 50 m in every gram.

Why multiply by 0.5905 and not 0.59?

0.59 is a rounded figure. The exact ratio is 590.54 ÷ 1,000 = 0.5905. For Nm 100 that gives 59.05 Ne against 59, which matters when you compare test results.

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