Firing Cost Calculator
Use this tool to estimate firing costs by entering the height, width, and depth of your piece.
Tip: Always measure the widest points
— not the neat ones.
— not the neat ones.
Estimated Firing Cost: $0.00
Shrinkage Calculator
Work backwards from the finished size to calculate how large to make your piece before drying and firing.
Tip: Great for lids, tiles, plates, and anything that needs to fit.
Make Before Firing:
Width: ...
Length: ___
Height: ___
Width: ...
Length: ___
Height: ___
Proportion Calculator
Scale a form up or down while keeping the relationship between its parts consistent.
Tip: Great for making families of forms that belong together.
Calculated result: ___
Current ratio: 280 : 250
Clay Amount Calculator
Estimate how much clay you may need for thrown, slab-built, coil-built, or moulded forms.
Tip: This is an estimate. Beginners usually need a little extra.
Estimated Clay Needed: ___