CACULATION OF RAW MATERIAL COST, WEIGHT, LENGTH. Hi. I'm Nitin Kumar quality control engineer in Allied medical LTD. I have more than four year experience in quality department. I'm B.tech (Mechanical) 2017 batch. Now I'm sharing our experience with you. 1- How can calculate raw material weight by material shape. It's possible by some formulas. we know that W = V * D W= WEIGHT V=MATERIAL VOLUME D= MATERIAL DENSITY DENSITY OF Materials