What is the weight of a gallon of water in liquid form?

The weight of a gallon of water in liquid form is 8.34 pounds. This measurement is standard and is based on the specific density of water at its maximum density, which occurs around 39.2°F (4°C). The value reflects the typical weight of water at room temperature.

Understanding this weight is important for various applications, especially in firefighting and emergency response situations, where accurate calculations of water weight can impact decisions about equipment load, water supply needs, and overall operational safety. While other options may seem plausible, they do not reflect the standard weight for a gallon of water, making 8.34 pounds the most accurate choice.