Relevance. Rating Newest Oldest. Best Answer: 80 oz of water is 10 cups or 5 pints or 2.5 quarts 8 oz to a cup 2 cups to a pint 2 pints to a quart In terms of cost, pennies depending upon the municipality.Source(s):Dave C · 9 years ago.elevance. Rating Newest Oldest. Best Answer: 80 oz of water is 10 cups or 5 pints or 2.5 quarts 8 oz to a cup 2 cups to a pint 2 pints to a quart In terms of cost, pennies depending upon the municipality.