Andy M.
Certified Pretend Chef
A third of a cup converts to just over 3 oz. 2 quarts = 64 oz which is 1/2 gal or 16 cups. (These are liquid conversions).
A third of a cup = 2 2/3 ounces or 5 1/3 tablespoons. While 64 ounces is a half gallon it's equal to only 8 cups.