16 1 cup servings. 1 gallon = 16 cups 1 cup =0.23 gallon
That is 20 servings
There are 16, 1 cup servings in a gallon.
An easy way to find the answer is to look at the nutrition label on the gallon of milk. One serving is 8 oz (which is 1 cup) and there are 16 servings ergo, 16 cups to a gallon.
That is 1 serving
1 cup of milk a day
I consider that as one serving.
There are 16 half cup servings of ice-cream in a half gallon of ice-cream.
32 0.5-cup servings in 1 US gallon.