Food and drink - Recipes and preparation - Avoirdupois pound
How many ounces are in one pound in the avoirdupois system?
Correct!
One pound (lb) equals 16 ounces (oz) in the avoirdupois system. This weight system is used especially in the United States. One ounce is approximately 28.35 grams, so one pound is about 453.6 grams. Pounds and ounces often appear in English-language recipes, product labels, and weight specifications.


