How to calculate 125 micron polythene sheet weight per sqm？
he specification is 600mm*530mm, the density is 1.25, the thickness is 125micron film,
Weight = 60cm * 53cm * (125*0.0001)cm * 1.25g/cm³=49.6875 g ≈ 0.04969 kg
Considering that the amount of film will not be just one sheet, all decimals are kept. When the number of sheets is large, the calculation error of the weight can be reduced. When calculating, multiply the total number of sheets to get the total weight.
The unit price of a square meter converted into a kilogram is:
= Single film price/single film weight
= 2.3*[600*530/(1000*1000)]/0.04969 = 14.7192 (yuan/kg)