Throw Size
6.82" × 3.41"
Clay Est.
3.1 lbs
Glaze
18.8 oz
Typical: stoneware 10–13%, porcelain 12–15%, earthenware 6–10%
Throw to these wet dimensions to hit your finished target after drying and firing
Excludes kiln firing costs (typically $5–$15 per piece at shared studios)
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Inputs
Result
At 12% total shrinkage: 4 ÷ (1 − 0.12) = 4.55 in height, 3.5 ÷ 0.88 = 3.98 in diameter. Outer surface area of ~44 sq in needs about 85 ml for dip glazing.
Inputs
Result
At 15% shrinkage: 8 ÷ 0.85 = 9.41 in, 3 ÷ 0.85 = 3.53 in. Larger surface area and brushing method increase glaze to ~200 ml.
This page is for wet throwing targets: throw diameter, throw height, shrinkage adjustment, glaze coverage, firing range, and rough material cost. It helps you translate a finished-piece goal into wheel-side dimensions.
Use the Pottery Clay Weight Calculator when you want to size the clay ball for a mug, bowl, plate, or cylinder before wedging and prep. It accounts for form type, wall thickness, and clay body density. This page is better for wet throw dimensions, shrinkage targets, and glaze planning once the form is already chosen.
| Calculator | Best For | Key Output |
|---|---|---|
| Pottery Wheel | Throw size planning | Wet dimensions, glaze amount |
| Clay Weight | Sizing clay ball | Starting weight in lbs/kg |
| Clay Shrinkage | Shrinkage testing | Fired vs wet % change |
| Glaze Calculator | Batch mixing | Grams per ingredient |
Scale your finished target up by the clay body's shrinkage rate. If your clay shrinks 12%, you need to throw the form larger than the finished dimensions so the fired piece lands where you want it.
| Clay Type | Wet-to-Dry | Dry-to-Fired | Total Shrinkage |
|---|---|---|---|
| Earthenware | 3–4% | 2–3% | 5–7% |
| Stoneware | 5–7% | 5–6% | 10–13% |
| Porcelain | 6–8% | 6–8% | 12–16% |
Glaze coverage depends on surface area and application method. Dipping uses less than brushing because the coat is more uniform. A typical mug needs about 50–100 ml of prepared glaze.
Explore wheel, clay weight, glaze, and shrinkage tools for ceramic planning.
Last Updated: Mar 26, 2026
This calculator is provided for informational and educational purposes only. Results are estimates and should not be considered professional financial, medical, legal, or other advice. Always consult a qualified professional before making important decisions. UseCalcPro is not responsible for any actions taken based on calculator results.