2. Weigh the tank. Most propane grill tanks come with two numbers stamped on the handle – the water capacity (“WC”) and “Tare Weight” (TW – the weight of the tank when it's empty). Most grilling tanks weigh about 17 pounds when empty and hold about 20 pounds of gas.
Also to know is, how many gallons does a 15 lb propane tank hold?
Similarly, how much does an empty Blue Rhino tank weigh? 17 pounds
Besides, how much does an empty propane tank weigh?
Is it cheaper to refill propane or exchange?
Advantages of Refilling a Propane TankIt is less expensive to refill a tank rather than exchanging. Some people have noticed they get more propane in the tank when they refill them than when using an exchange tank. At many exchange vendors, it seems to be policy to add only 15 pounds in a 20-pound tank.