How much is a 1 gallon propane tank?

One gallon of the propane tank is 12 inches tall and weighs 5.9 pounds. The cost of 1 gallon of propane tank depends upon the season, the location, and the current economic circumstances. Generally, the cost of a brand new 1-gallon propane tank is $20. For refill, the cost of $1 to $3 per gallon.