Convert Pennyweight (pwt) to Centigram (cg) instantly.
About these units
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.
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.