Water weighs about 8 pounds per gallon
The weight of water can vary depending on the temperature and impurities present, but as a general estimate, water weighs about 8.35 pounds per gallon. Here's how you can calculate the weight of water per gallon:
1. Determine the weight of one cubic inch of water: One gallon is equal to 231 cubic inches. Since the density of water is approximately 0.0361 pounds per cubic inch, multiply 231 by 0.0361 to get 8.35 pounds.
Therefore, water weighs about 8.35 pounds per gallon.