Clay Shrinkage Calculators
Free tools for potters and ceramicists to plan for clay shrinkage before it fires, not after.
Shrinkage percentage calculator
Find your clay's shrinkage % from a wet and fired measurement.
Predict fired size
Know your clay's shrinkage rate? See what size it'll be once fired.
Target wet size calculator
Work backwards from the fired size you want to the size to make it now.
Clay shrinkage reference chart
Typical total shrinkage ranges for earthenware, stoneware, and porcelain.