How many grams are in a ounce?

Answer 1

There are 28 grams to a ounce, however if you a weighing precious metals there

are 31.1 grams to a troy ounce.

ANSWER It depens of density of substance 1 US ounces of water weig 29.57 gram 1 US ounces of honey weig 38.45 gram 1 US ounces of wheat flour weig 14.97 gram and so on

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1. Make no confusion between fluid ounce and ounces for solids !

2. Make no confusion between troy ounce and avoirdupois ounce !

- 1 troy ounce: 31,103 476 8 g

- 1 avoirdupois ounce: 28,349 523 125 g

- 1 US customary fluid ounce: 29,573 529 562 5 mL

and the list of ounces is not complete !

3. Confusion is due to the fact that you not want to learn the metric system and use a myriad of obsolete units from the Middle Age.