Yarn count is a number that describes how fine or coarse a yarn is. In the cotton system the count is the number of 840-yard hanks that weigh one pound, so a higher number means a finer yarn: 60s is finer than 40s, which is finer than 30s. The letter s simply marks the English cotton count, which is also written as Ne. Indian suppliers quote cotton yarn almost entirely in this system, so it is worth being fluent in it.
Because the system is indirect, it feels backwards at first. A 20s yarn is thick and used for heavy fabrics, while a 60s yarn is fine and used for light shirting. Most other fibres are sold on direct systems such as tex or denier, where a higher number means a heavier yarn, so check which system a supplier is using before comparing quotes.
Common counts and where they go
- 10s to 20s: denim, canvas, towels, heavy knits and upholstery.
- 20s to 30s: T-shirts, polo shirts, sheeting, workwear and basic woven fabrics.
- 30s to 40s: better T-shirts, shirting, poplin and fine knits.
- 40s to 60s: fine shirting, dress fabrics, bed linen and lightweight knits.
- 60s and above: premium shirting, voile and fine bed linen, almost always combed from long staple cotton.
Single and plied yarns
A count written as 2/40s or 40/2 describes two 40s yarns twisted together, giving a plied yarn roughly equal in weight to a 20s single but stronger and more even. Plied yarns are used for sewing thread, shirting and fabrics that need durability. Make sure the quote is clear about whether a count is single or plied, since the price and the fabric weight differ considerably. A plied yarn also needs cotton that spins well at the finer single count, so a 2/60s thread is priced from 60s cotton, not from the 30s it resembles in weight.
How count links to cotton and price
Each count has a cotton that suits it. Shankar-6, with its 28 to 30 mm staple, spins comfortably into 20s to 40s. Finer counts need longer staple, usually combed, and that cotton costs more per kilogram. Spinning cost also rises with count, because the machines produce fewer kilograms per hour of fine yarn, so the price per kilogram climbs steeply above 40s.
Count also carries a tolerance. Mills typically hold the actual count within a small percentage of nominal, and the test report shows the measured count and its variation. A yarn that runs consistently heavier than nominal makes a heavier fabric and uses more cotton per metre, which matters when you are costing a garment.
What we do
We help you match the count to the fabric and the cotton, visit the spinner to confirm the count is being spun on the right fibre, and send sealed cone samples to an NABL-accredited lab to check count, strength and evenness. We keep one approved mill and one backup per count, supervise loading and send a weekly update. If you want a second opinion on a yarn specification, we offer a free 20-minute sourcing review.