The number of pounds in one gallon depends on what substance you are measuring because different substances have different densities. In the United States, when referring to liquid substances, a gallon is typically equal to 8.34 pounds (lb). This is commonly used for water, which has a density of approximately 8.34 pounds per gallon at room temperature.
However, for dry substances like sugar or flour, the weight of one gallon will vary depending on the density of the substance. For example, one gallon of granulated sugar will weigh approximately 8.3 pounds, while one gallon of all-purpose flour will weigh around 3.5 pounds.
It's important to note that the weight of a gallon can differ in other countries that use different measurement systems (e.g., the imperial gallon used in the UK is larger than the US gallon). Therefore, it's always a good practice to specify the substance you are referring to when converting between pounds and gallons.
