Small tools. Useful answers.

Practical calculators & pottery tools.
A better next step.

Practical calculators and working tools, organized by what you’re making. Start with our clay studio collection.

Available collection · Clay & pottery

From wet clay
to a better fit.

Measure shrinkage, work backwards from a finished size, and keep your own studio tests together.

Only working tools are listed here. No placeholder categories or coming-soon calculators.

Clay · Calculator

Calculate wet-to-fired shrinkage and the starting size needed for your finished piece.

Clay · Record keeping

Save and compare your clay-body tests in this browser, then export a CSV backup.

Clay · Print

Take a simple measurement card to the studio for wet, dry, and fired test-bar readings.

Clay · Learn

Learn how to run a shrinkage test and understand drying versus firing percentages.