Casting Grain Calculator
Calculate how much casting grain (metal) you need for lost-wax casting based on wax model weight, metal density, and sprue/button allowance.
Inputs
g
%
Results
Total Metal Needed
81.11 g
Piece Weight
54.07 g
Sprue & Button Weight27.04 g
Total Troy Ounces2.61 ozt
Wax-to-Metal Ratio10.81x
Total Metal Dwt52.15
How to Use This Calculator
- Enter the wax model weight in grams.
- Select your metal alloy (e.g., 14k gold, sterling silver) from the list.
- Review the calculated casting grain weight needed including sprues and gates.
- Add a safety margin if your casting setup has significant sprue losses.
- Use the metal weight to order the correct amount of casting grain from your supplier.
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