Ounces to cups or Grams

So if I have 16 ounces of chocolate how much would
That be in cups or grams ?

One cup equals 8 ounces, so 16 ounces equals 2 cups.

16 ounces (is a pound) is equal to 454 grams. Cups generally are to measure volume, tho at small volumes (for liquid of water density) the weight is pretty close to the volume.

1 US fluid ounce = 0.125 US cups

so 16 * 0.125 = 2 cups

1 ounce = 28.3495231 grams
so 16*28.3495231 = 453.5923696 grams

8oz = 1 cup So it is 2 cups Ounces are a fluid measurement. Grams are a weight measurement