Source: wikibot/pennyweight
= Pennyweight
{wiki=Pennyweight}
Pennyweight (abbreviated as "dwt") is a unit of weight that is commonly used in the fields of precious metals and jewelry. One pennyweight is equal to 1/20 of an ounce or approximately 1.555 grams. The term "pennyweight" historically derives from the weight of a penny in ancient times, although the modern definition is specific to weighing metals.