What is a Troy Ounce?

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 14^th 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 18^th 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!