Convert Hundredweight (US) (cwt (US)) to Pennyweight (pwt) instantly.
About these units
Hundredweight (US) (cwt (US))
The US hundredweight equals 100 pounds (45.359237 kg) and is used in agriculture, livestock markets, and commodity trading. Farmers often price hay, grain, and cattle by the hundredweight. The oil and chemical industries also use it for bulk goods. Its relation to the ton (20 cwt = 1 US ton) integrates it smoothly into the US customary system. Although it complicates international trade due to conflicting definitions with the UK version, the US hundredweight remains essential in domestic commerce.
Pennyweight (pwt)
The pennyweight, equal to 1/20 of a troy ounce or 1.55517384 grams, is a unit used primarily in the precious metals and jewelry industries. Its origins lie in medieval English coinage, when the weight of silver pennies provided a practical standard for small masses. Jewelers continue to use the pennyweight because many traditional pricing structures and metalworking conventions are built around troy-based subdivisions. For gold, silver, and dental alloys, the pennyweight remains easier to work with than grams due to long-established norms. Even though the metric system is now dominant scientifically, the pennyweight persists because industries tied to history—especially those involving money and precious goods—tend to maintain deeply rooted practices.