A '''troy weight''' has been used to measure gold, silver and other precious metals, dating back to the [[Middle Ages]]. A troy pound consists of 12 troy ounces, and a troy ounce weights 480 [[grain (weight)|grain]]s. The troy ounce weighs about 31.1 grams, while a regular ounce is around 28.3 grams.
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'''Troy weight''' has been used to measure gold, silver and other precious metals, dating back to the [[Middle Ages]]. There are 480 [[grain (weight)|grain]]s in a troy ounce, and 12 troy ounces in 1 troy pound.
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In metric units, the troy ounce weighs about 31.1 grams, while a regular ounce is around 28.3 grams.
A troy ounce is slightly heavier than an ordinary ounce: there are 14.58 troy ounces in one conventional pound.
A troy ounce is slightly heavier than an ordinary ounce: there are 14.58 troy ounces in one conventional pound.