Convert Centigram (cg) to Pennyweight (pwt) instantly.
About these units
Centigram (cg)
A centigram, equal to 1/100 of a gram, is an intermediate unit not frequently encountered in everyday life but occasionally useful in laboratory settings and chemical formulations. Its size offers a compromise between the larger gram and the smaller milligram, especially in contexts like dietetics, powdered chemicals, or small-scale industrial ingredients. Though not widely used, the centigram's value lies in its flexibility—providing a metric option for moderate precision without resorting to decimals.
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.