The Most Trusted Free Ceramic Calculation Platform
Scientific accuracy for every ceramicist — from hobby potter to production studio.
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Featured Calculators
Clay Shrinkage Calculator
Calculate drying, firing, and total shrinkage rates from wet, dry, and fired measurements.
Target Finished Size Calculator
Calculate the wet throwing size needed to achieve a specific finished fired dimension.
Clay Weight Estimator
Estimate the correct amount of wet clay needed for a pot based on dimensions and form type.
Drying Time Predictor
Estimate how long a ceramic piece will take to dry based on wall thickness, humidity, and airflow.
Crack Risk Calculator
Assess the cracking risk of a ceramic piece during drying based on form, clay type, and conditions.
Multi-Axis Shrinkage Calculator
Measure shrinkage in X, Y, and Z axes to detect anisotropic behavior and warping risk.
Free Pottery & Ceramic Calculators for Every Stage of the Process
Whether you're a studio potter calculating clay shrinkage for fitted lids, a student working through glaze chemistry, or a ceramic engineer scaling a glaze batch for production, ClayCalc gives you the same scientific accuracy in seconds that used to require a chemistry textbook and a spreadsheet.
All pottery and ceramic calculations run entirely in your browser — no account, no paywall, no ads on results. From kiln cone temperatures and firing schedules to pottery pricing and studio break-even, every formula is named, verifiable, and documented — not a black box.
How ClayCalc Ceramic Calculators Work
Every calculator is built on peer-reviewed formulas, empirical studio data, and real-world production experience.
Scientific Formulas
Every calculation is based on established ceramic science — Seger formulas, thermal expansion coefficients, and validated shrinkage models.
Empirical Correction
We apply real-world correction factors drawn from studio practice, not just textbook theory. Results reflect actual production conditions.
Validated Ranges
Every input and output is checked against realistic ceramic ranges. Unusual values trigger clear warnings, so you can trust your results.