Hakaru — Clay Calculator

Clay body

Enter shrinkage % from your clay bag or supplier data sheet.

Green dimensions — what you throw

Height cm

Rim diameter cm

Wall thickness mm

5 – 8 mm typical for functional ware

Clay to wedge

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Wall

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Green — throw to

Height —

Diameter —

Fired

Height —

Diameter —

Volume (fired) —

Vessel preset — sets starting proportions

Clay body

Enter shrinkage % from your clay bag or supplier data sheet.

Target dimensions

Target volume (fired) ml

Typical range for this preset: —

Target height (fired) cm

Rim diameter calculates from volume + height

Foot ring — % of belly diameter

55 % of belly

40% 55% traditional 70%

Clay to wedge

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Preset

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Green — throw to

Height —

Rim diam. —

Belly diam. —

Foot ring —

Fired

Height —

Rim diam. —

Belly diam. —

Foot ring —

Volume (fired) —