Pottery Calculators
Free pottery calculators for clay weight estimation, glaze chemistry calculations, kiln firing schedules, shrinkage rate planning, and construction design for potters and ceramic artists.
Pottery Subcategory
Clay & Materials Calculators
Calculate clay weight for thrown and hand-built forms, estimate shrinkage from wet clay to fired ware, measure glaze specific gravity, plan clay reclaim processes, and determine plaster-to-water ratios for mold making.
5 calculators
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Pottery Clay Weight Calculator
Calculate how much clay you need for pottery projects based on form type, dimensions, and clay body with shrinkage compensation.
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Pottery Shrinkage Calculator
Calculate pottery clay shrinkage from wet to fired dimensions and find the wet size needed to achieve your desired fired measurements.
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Pottery Specific Gravity Calculator
Measure and adjust the specific gravity of pottery glazes for consistent dipping, brushing, or spraying application thickness.
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Pottery Clay Reclaim Calculator
Calculate how to reclaim and recycle pottery clay scraps including water adjustments, drying time estimates, and cost savings versus buying new clay.
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Pottery Plaster Mold Calculator
Calculate the correct plaster-to-water ratio and quantities for pottery molds including press molds, slip casting molds, and hump molds.
About These Pottery Calculators
Pottery calculations bring precision to an art form that has been practiced for thousands of years. Whether you're estimating how much clay to wedge for a set of mugs, calculating shrinkage to ensure a lid fits after firing, or scaling a glaze recipe for a larger batch, the underlying math saves time, reduces waste, and prevents costly kiln disasters.
This collection covers the core calculations that every potter encounters: clay weight estimation for throwing and hand-building, shrinkage compensation across wet-to-fired stages, glaze chemistry and batch scaling, kiln firing schedules and cost estimation, and construction dimensions for slabs, coils, and wheel-thrown forms.
All calculations run entirely in your browser — no data is sent to a server, no account is required, and results appear instantly. The formulas follow standard ceramic engineering references, Orton cone specifications, and established studio pottery practices refined over generations of craft tradition.