Co-Authored By:

##### Asked by: Lucienne Ikazteguieta

automotive green vehicles# How much does an empty 40 pound propane tank weigh?

**29lbs**. if empty.

Also to know is, how much do empty propane tanks weigh?

stamped on the collar of the tank. For a grill sizedtank you simply calculate the tare weight + **20 lbs**, andthat's how much the tank should weigh when it's full. Most **20lb** tanks have a tare weight of +/- **17 pounds** whencompletely empty. This means a "full" propane tank should weighabout 37 pounds.

**4.125 pounds**per gallon and a "30 pound tank" will hold about 7.5 gallons so afull tank will weigh about 55 pounds or so."

Thereof, how much does a 100lb propane tank weigh empty?

Most #100 **tanks weigh** about 67 pounds **empty**plus the 100 pounds of lpg making 167 pounds.

A **40 lb**. **propane tank** measuresapproximately 29 inches high by 12.5 inches in diameter, and has aBTU capacity of 860,542. A 100 **lb**. **propane tank**measures approximately 48 inches high by 14.5 inches in diameter,and has a BTU capacity of 2,160,509.