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Q:

# How much does one gallon of milk weigh in pounds?

A:

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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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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## Related Questions

• A:

In July 2013, famous Japanese fast eating competitor Takeru Kobayashi proved it was possible to drink a gallon of milk in one hour by accomplishing the task in 20 seconds. While the origins of the milk chugging challenge are not completely known, its popularity was given a boost by an episode of the U.S. television series "Jackass," where it showed Dave Engeland and Ehren McGhehey taking the challenge. The popularity of the gallon challenge as an odd form of entertainment stems from the inability of most people to consume such a large amount of milk without vomiting.

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• A:

One gallon of pure water weighs 8.345 pounds at standard temperature and pressure. However, the density of water varies based on temperature. Thus, a given volume of water weighs differently at different temperatures.

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• A:

A gallon is a standard unit of measurement used to measure liquids, while a pound measures mass; it is not possible to convert between the two because they measure two different things. To calculate the weight of a gallon of something, the gallon should be measured out and weighed on a scale.