A Troy ounce
is a part of the Troy weight system. This system dates back to the ancient
Romans and has a rich history when it comes to precious metals! 1 troy ounce is
approximately 1.09714 avoirdupois ounces, which is the weight system we use in
the United States, with the exception of precious metals. Dating back to the 14th
century (before the advent of the Metric system) the Troy system has become
synonymous with the weight of a precious metal. While many have attributed the
name Troy to the French city of Troyes, they may just be spreading a story
thought up in the 18th century.
If you see a gold or silver coin minted any time after the
early 1800’s, the weight will be designated in Troy ounces. In 1828, the United
States Congress passed a law where the official weight designation for coinage
would be in Troy. Some interesting facts about Troy are:
- A Troy pound is 12 Troy ounces, not 16 like the avoirdupois system.
- A Troy Ounce is 480 grains as opposed to the 437½ in avoirdupois.
- A Troy ounce is 10% larger than its avoirdupois counterpart.
- Troy systems vary between the United States, Scotland and the Netherlands.
Understanding this different measurement system is important
to better calculate the amount of metal you need for a project. By doing the
correct calculations, you can avoid over ordering expensive precious metals!
For ordering avoid and the best prices on precious metals,
make sure to contact JRG Inc!