One of the unique challenges of working with clay is accounting for how significantly it shrinks as it dries and fires—often by up to 20%, depending on the clay body and firing temperature. To simplify the math behind these transformations, I built this digital shrinkage converter. The utility allows ceramicists to easily calculate precise wet-clay dimensions to ensure finished pieces emerge from the kiln at the intended size. Try the live tool: calculator-eight-ruddy.vercel.app/