A cup of water weighs approximately 236 grams. This is the equivalent of about 0.52 pounds or 8 fluid ounces. A cup is a unit of measurement typically used in cooking that equals 250 milliliters, which is just over 8 fluid ounces.
A cup of water weighs about 236 grams. That’s about 0.52 pounds or 8.3 ounces.

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How Much Does a 1 Cup of Water Weigh?
A gallon of water weighs 8.34 lbs, so one cup of water would weigh around 0.10 lbs.
How Much Does a Cup Weigh in Grams?
A cup is a measure of volume, not weight. The weight of a cup of water will vary depending on the size and density of the cup, but is typically between 150 and 300 grams.
How Much Does 1/4 Cup of Water Weigh in Grams?
Assuming you’re talking about liquid water, 1/4 cup of water weighs 50 grams. This is because 1 cup of water weighs 236.59 grams, and there are 4 cups in a quart (which is why 1 quart of water weighs 946.4 grams). So 1/4 cup of water is one fourth of that, or 50 grams.
Does 16 Oz of Water Weigh a Pound?
No, 16 oz of water does not weigh a pound. One pound is equal to 16 ounces, but that is not the same as saying that 16 ounces of any substance weighs a pound. The weight of an object depends on its mass, which is the amount of matter it contains.
Water happens to have a density of 1 gram per milliliter (or 1 ounce per cup), so 16 ounces of water has a mass of about 1 pound.
How much does a cup of water weigh?
Conclusion
A cup of water weighs around 236 grams. This is because a cup of water is equivalent to one-half liter, and one liter of water weighs 1,000 grams or 2.2 pounds.