How many gallons does a 30 lb propane cylinder hold?

A 30 lb propane cylinder is designed to hold approximately 7.2 US gallons of liquid propane. This volume is derived from the fact that one pound of propane is roughly equivalent to 0.236 gallons. Therefore, when you multiply 30 pounds by 0.236 gallons per pound, you arrive at the capacity of approximately 7.2 gallons. Understanding the specifications of propane cylinders is crucial for safe handling and appropriate usage in various applications, such as heating and cooking. The measurement allows technicians and users to calculate how long a cylinder will last based on fuel consumption, which is fundamental in both residential and commercial settings.

Knowing the capacity of different sizes of propane cylinders, as in this instance, is essential for effective planning and safety in propane use. While the other choices indicate figures that may seem plausible, they do not accurately reflect the standard capacity of a 30 lb cylinder.