Q:

How much does one gallon of milk weigh in pounds?

A:

Quick Answer

According to the USDA, a gallon of milk weighs about 8.6 pounds. A quart of milk weighs about 2.15 pounds.

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How much does one gallon of milk weigh in pounds?
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Full Answer

Of course, since milk is an organic product, those figures are averages rather than exact figures. Depending on its fat and nutrient content, milk's weight can vary a small amount. For reference, the weight of a gallon of water is 8.34 pounds, and the density of water is about 1 kilogram per liter. Since milk is between 80 and 90 percent water, even an outlier gallon sample of milk only varies a few ounces from the USDA figure. Also, since most commercially sold milk is blended and homogenized, the chance for significant variation is even smaller.


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