Plaster Mold Volume Calculator
for making Two Part Casting Molds
Estimates the volume of liquid plaster needed to make a two part casting mold, based on the calculated volume of your model and container (ie. the cottles used to surround the model being molded). Just want to make drape mold by filling a container with plaster. More info on how to calculate plaster volume below.
- *Use length and width for rectangular shapes; Use radius for cylinders, spheres, cones.
- Enter model and container measurements in inches.
- Half sphere can be used if your model is a bowl and is approximately half the size of a full sphere.