What is the approximate weight of water per gallon?

Water has a standard weight of approximately 8.3 pounds per gallon at room temperature. This value is widely used in various applications, including engineering, plumbing, and boiler operations. Understanding this weight is crucial for calculations related to water usage, system capacities, and safety regulations in boiler operation. If an operator needs to calculate the amount of water in a system or the weight of water for any purpose, knowing that 8.3 pounds per gallon is the standard simplifies those calculations. Accurate knowledge of water weight helps prevent issues like overloading tanks or miscalculating heating requirements.