Shrinkage Rate Calculator
Calculate the final fired size and total shrinkage percentage from wet dimensions, wet-to-dry and dry-to-fired shrinkage rates.
Inputs
in
%
%
Results
Final Fired Size
8.84 in
Bone-Dry Size9.4 in
Total Shrinkage11.64%
Total Size Lost1.16 in
Wet Size to Hit This Final11.32 in
How to Use This Calculator
- Measure and enter the wet size of your piece in inches (the dimension you care about when freshly formed).
- Enter your clay body's wet-to-dry shrinkage percentage — run a test tile to measure this, or use 4–8% as a starting estimate.
- Enter the dry-to-fired shrinkage percentage for your clay fired at your target cone.
- Read the bone-dry size and the final fired size in inches.
- Note the total shrinkage percentage and the total size lost to plan your mold or forming dimensions.
- Use the 'wet size to hit this final' output to work backward from a target finished dimension.
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