How much does a gas grill propane tank weight full?

A full standard propane tank for a gas grill typically weighs around 37 to 40 pounds (17 to 18 kg). The tank itself usually weighs about 17 to 20 pounds (7.7 to 9 kg) when empty, meaning the propane inside adds approximately 20 to 23 pounds (9 to 10.4 kg). The exact weight can vary slightly depending on the tank's size and manufacturer.