A troy ounce is the standard unit for weighing gold, silver and other precious metals — and it's heavier than a regular ounce. One troy ounce is 31.1035 grams.
For metals
Precision weighing gear.
Precision jewellery scale
Weigh to 0.01 g.
Gold testing kit
Verify purity at home.
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Frequently asked questions
How many grams in a troy ounce?
One troy ounce equals 31.1035 grams.
Is a troy ounce heavier than a regular ounce?
Yes — a troy ounce (31.10 g) is heavier than a standard avoirdupois ounce (28.35 g).