Kiln Shrink Sizer

Kiln Shrink Sizer takes the guesswork out of clay shrinkage.

Clay shrinks 10-15% from wet to fired, so hitting an exact finished size - a lid that fits, a jar to spec, a matched set - means throwing it larger by just the right amount. Kiln Shrink Sizer does that math for you, instantly.

• Save each clay body with its measured shrinkage percentage
• Enter the finished size you want, get the exact wet size to throw
• Or enter your wet size, see how big it will end up after firing
• Switch directions with a single tap

No accounts, no internet, no clutter - just a fast, focused studio tool. Everything you enter stays on your device.

Built for studio potters, ceramics students, and anyone tired of guessing at shrinkage.

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