The yarns are classified according to the "title”, a conventional name referring to the fineness and therefore to the thickness of the yarn, or in meters. The most widely used and best-known method for the yarn classification is the 'yarn count by length', i.e. the ratio of yarn length to yarn weight: the higher the count, the thinner the yarn (e.g. a 2/26 ltd. yarn is thinner than a 2/14 ltd. yarn).
When calculating the meters, it must also be taken into account what type of yarn we are talking about, i.e. whether it is made up of a single garment (single garment) or twisted (therefore joined to 2 or more garments). For single-ply yarns, the title corresponds to the length, for example: e.g. in a kilo of yarn 1/15 there are approx. 15,000 metres. For twisted yarns, on the other hand, the length should be divided by the number of garments; e.g. in a kg of 2/26 yarn there will be approx. 13,000 metres of yarn or in a 4/16 yarn there will be approx. 4,000 metres.