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 gallo... More »

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The weight of three gallons depends entirely on what is being measured and weighed. The most standard answer to this question, however, is that one gallon of water is 8.34 U.S. pounds, so three gallons equals 25 pounds. More »

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. More »

Grams are a measurement of weight, which is also known as mass. On the other hand, cups are a measurement of volume, so it is not possible to directly convert grams to cups. It's necessary to know the density of the mate... More »

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The acronym "lb." stands for pound, an imperial measurement of mass. Mass is a measure of how much matter is in a substance or object. The pound is equal to 16 ounces, which means that any amount of ounces can be convert... More »

As grams are a unit of mass and milliliters are a unit of volume, you need to know the density of the substance you are measuring in milliliters in order to convert the measurement from milliliters to grams. In the case ... More »

A dram is a unit of mass that is equal to either 1/16 ounce, 1.77 grams in the avoirdupois system of measurement or 1/8 ounce in the apothecaries' system. The related unit of measurement is the fluid dram, and it is used... More »