Question: how many fluid ounces is 8 cups of water?
Answer: 1 Cup is equal to 8 fluid ounces (oz). To convert cups to fluid ounces, multiply the cup value by 8. For example, to find out how many fluid ounces there are in a cup and a half, multiply 1.5 by 8, that makes 12 fluid ounces in a cup and a half.