casting calculator is an ideal tool for computing and converting precious metals and alloys in lost wax casting. a must for jewelry professionals, manufactures, hobbyists and laymen. just enter the weight of your mounting or jewelry in the metal or alloy of your choice and casting calculator will automatically give you a readout in the output text boxes what the new weight of the mounting will be in the metal or alloy of your choice: gold (10k-14k-18k-white or yellow), just enter the weight and then select the karat in either yellow or white gold. silver, platinum, palladium, brass and wax. lost wax casting calculator metal alloy converter will ajust weights of metals to the desired metal, karat and alloy. awarded 5 stars at ninteen different leading software sites.