The number of pounds in 1 gallon depends on the substance being measured, as different liquids have different densities.
For water (at 62°F or 17°C), 1 US gallon weighs approximately 8.34 pounds. However, for other liquids, such as milk or oil, the weight of a gallon will vary slightly due to differences in density.
- Milk: 1 gallon weighs about 8.6 pounds.
- Vegetable oil: 1 gallon weighs around 7.6 pounds.