Depends on the wire specification, 1.0 is certainly longer than 1.2. First cut one meter corresponding specifications wire weighed, and then, each spools of wire net of the plastic disc approximate 19.8KG, in addition to one on the line, pay attention to many manufacturers 0.8 specification 15KG, you can only count 14.8KG. This calculation, differ significantly from 1.2mm specifications, for example, Weight per meter (7.85g/cm3) 3.1415x (1.2/2x10) 2 x 100 = 8.87 g of Spools of wire 19.8kg, length: 19.8x1000/8.87 = 2232m Other specifications are still estimates. Just a few people concerned about this data.