How much does a gallon of water weigh?

Interesting fact: The gallon is a unit of volume measurement used in the United States and a few other countries, but it has different meanings depending on the system of measurement. In the United States, a gallon is defined as 231 cubic inches, and in the British imperial system, a gallon is 277.42 cubic inches.

In the American system of measurements, a gallon of water weighs about 8.34 pounds or about 3.785 kilograms. In the British imperial system, a gallon of water weighs about 10.02 pounds or about 4.546 kilograms.

The history of water itself spans billions of years, but the history of measuring water in gallons is part of the history of scientific and practical measurements that have evolved over the centuries. Knowing the weight of a gallon of water is important in many fields including cookery, agriculture, chemistry and engineering where accurate measurement can be critical.

Last Updated on 20.10.2023