Plaster Mold Volume Calculator

Estimates the volume of liquid plaster needed to make your mold, based on the calculated volume of your model and container.

(To hold model - e.g. cottles)

Entry Fields

  • *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.