Use a Bathroom Scale
All propane tanks have two weights stamped onto the collar. One represents the tank’s empty weight (Tare Weight). The other represents its full weight (Water Capacity). A full 5-gallon propane tank weighs about 37 pounds.
To figure out how full your propane tank is, weigh the tank on a bathroom scale and subtract the tare weight. For example, if a tank weighs 20.6 pounds and the tare weight stamped on the collar is 17 pounds, 20.6 – 17 = 3.6 pounds of propane. (20 pounds is considered maximum regulation full.) At a rough estimate, a pound of propane lasts about an hour. In the example, 3.6 pounds is 18% full (3.6 ÷ 20 = .18). Now that you know you have enough gas left to grill, it’s time to start up your BBQ!
Whether you’re looking for a cost-effective option for grilling, trying to branch out with your grilling techniques, or just want to compare options, here are the different grill fuels available today and what makes them unique.