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These numbers identify the yarn size or weight per unit length or vice versa, depending on the particular system being used. Staple yarns are more complicated to measure since any of five methods may be used. There are references to cotton count, worsted count, tex, and also denier, but cotton count is the most widely used in the United States. Yarn Count Designations Count System Example COTTON COUNT The number of 840 yard skeins in one pound An indirect yarn count system The larger the numeric cotton count, the finer the yarn The number of plies is indicated by an integer following the slash mark A cotton count of 3.00/2cc = two single strands each of 3.00cc ply twisted together total structure = 1.50 cc DENIER The weight in grams of 9,000 meters of yarn Direct yarn count system The larger the numeric denier, the thicker the yarn Used to define the size of yarn, fiber, filament or strands The number of plies is indicated by an integer following the slash mark A denier of 2,600/2 = two 2,600 denier single yarn plied together total structure = 5,200 denier TEX/DECITEX [DTEX=10 TEX] Dtex is the most used international measurement Weight in grams per likometer (1,000 meters) of yarn, fiber, filament or strands Multiply denier by 1.111 to convert dtex Multiply dtex by 0.9 to convert denier 5,200 denier x 1.111 = 5,777.2 dtex CONVERSION To visualize a size relationship between spun yarns designated in cotton count and continuous filament yarns designated in denier Divide cotton count or denier into 5,315 to convert to yarn count of other system 5,315 ÷ cotton count = denier 5,315 ÷ denier = cotton count 5,315 ÷ 1.500 cc = 3.54 denier 5,315 ÷ 3,000 denier = 1.77 cc