Clay Shrinkage Calculator
Calculate how much your pottery will shrink during the drying and firing process to ensure your final pieces are the correct size.
Calculate ceramic dimensions:
Step 1: Input the original (wet) measurement of your clay body.
Step 2: Enter the percentage of shrinkage (total drying and firing).
Step 3: The calculator will output the final expected size of your pottery.
Shrinkage is calculated using the formula: Final = Original * (1 - (Shrinkage/100)). If you know your target final size, you can also calculate the required building size: Original = Final / (1 - (Shrinkage/100)).
Potters and ceramic artists use this tool to ensure that lids fit jars, mugs remain a usable size, and functional pieces meet specific dimension requirements after they leave the kiln.
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