Troy Ounce vs. Regular Ounce: What's the Difference?
A troy ounce is about 31.10 grams, heavier than a standard ounce. Learn why precious metals are weighed in troy ounces.
A troy ounce equals 31.1034768 grams, about 10% heavier than the ordinary (avoirdupois) ounce of 28.35 grams. Precious metal prices and weights are always stated in troy ounces.
How many grams are in a troy ounce?
31.1034768 grams. A kilogram is about 32.15 troy ounces.
How many troy ounces are in a pound?
A troy pound has 12 troy ounces, but bullion is rarely priced in troy pounds. A standard pound equals about 14.58 troy ounces.
Why does this matter when buying?
Product weights such as '1 oz' or '10 oz' refer to troy ounces. Always compare the fine troy-ounce content of a product.
Sources & further reading
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