Troy Weight Conversion Chart
The History of Troy Weight
Troy weight is a system of units of mass customarily used for precious metals and gemstones. It is believed to have originated in the Roman Empire and was named after the city of Troyes in France. The Troy weight system is based on the grain, which is equivalent to 64.79891 milligrams. The system is commonly used in the United States and the United Kingdom for weighing precious metals such as gold and silver.
The Troy weight system is different from the avoirdupois weight system, which is commonly used for everyday items. In the Troy weight system, there are 12 ounces in a pound, whereas in the avoirdupois system, there are 16 ounces in a pound. This difference can cause confusion when converting weights between the two systems.
How to Use a Troy Weight Conversion Chart
A Troy weight conversion chart is a valuable tool for anyone working with precious metals or gemstones. It allows you to easily convert weights between different units in the Troy weight system. The chart typically includes conversions for grains, pennyweights, ounces, and pounds.
To use a Troy weight conversion chart, simply find the unit you have on the left side of the chart and follow the row across to the unit you want to convert to. The chart will provide you with the conversion factor to multiply by to get the equivalent weight in the new unit. For example, to convert ounces to pennyweights, you would multiply by 20, as there are 20 pennyweights in an ounce.
Common Troy Weight Conversions
Here are some common Troy weight conversions that you may encounter:
- 1 grain = 0.06479891 grams
- 1 pennyweight = 24 grains
- 1 ounce = 20 pennyweights
- 1 pound = 12 ounces
By familiarizing yourself with these conversions and using a Troy weight conversion chart, you can easily work with precious metals and gemstones in the Troy weight system. Whether you are a jeweler, a pawnbroker, or a hobbyist, understanding Troy weight conversions can help you accurately weigh and value your items.
Download Troy Weight Conversion Chart
Troy Weight Conversion Calculator
Troy Weight Conversion Calculator