Glossary
Troy Ounce
The standard weight unit for precious metals, equal to 31.1034768 grams.
Definition
The troy ounce is the internationally recognised weight for pricing and trading precious metals. One troy ounce equals 31.1034768 grams, heavier than the avoirdupois ounce used in everyday US measurements. Every gold price quote on this site converts from USD per troy ounce into the local weight unit.