The diameter of the cotton yarn helps to determine the density of the yarn composition of the fabric, or the coverage of a certain yarn to produce a certain fabric. The linear density of the yarn is equal to the number of fibers times the average linear density of fibers. For example: Ny = M 5 Nf Ny = linear yarn density Nf = linear fiber density M = number of fibers on the cross-section of the yarn for future calculation of the density and coverage of the fabric, the diameter of the cotton yarn is now listed: 10 British branches = 0.0113 (Inch) 12 Inch = 0.0103 (Inch) 14 Inch = 0.00956 (Inch) 16 Inch = 0.00895 (Inch) 18 Inch = 0.00844 (Inch) 20 Inch = 0.00800 (Inch) 22 British branch = 0.00763 (inch) 24 British branch = 0.00731 (inch) 26 British branch = 0.00721 ​​(inch) 28 British branch = 0.00677 (inch) 30 British branch = 0.00654 (inch) 32 British branch = 0.00633 (inch (Inches) 34 inches = 0.00613 (inches) 36 inches = 0.00596 (inches) 38 inches = 0.00580 (inches) 40 inches = 0.00565 (inches) 42 inches = 0.00552 (inches) 44 inches Branch = 0.00539 (inch) 46 British branch = 0.00527 (inch) 48 British branch = 0.00517 (inch) 50 British branch = 0.00506 (inch) The above unit is inch, and it will be converted to cm if necessary.