# How Many Gallons Are in a 20lb Propane Tank?

A 20 pound propane tank can hold about 4.3 gallons of propane. A 20 pound tank will leave about 20% of the tank empty. The tank will also have a water capacity to account for as well.
Q&A Related to "How Many Gallons Are in a 20lb Propane Tank?"
 Propane weighs 4.11 pounds per gallon. A 20 pound cylinder holds 4.87 gallons of propane. Source(s) Garage Logic! http://answers.yahoo.com/question/index?qid=201001...
 1. Place the 20-pound tank on the scale alongside your supply tank, if there is a scale. 2. Make sure the nozzle running from the propane supply tank (the source of your propane) http://www.ehow.com/how_10063905_refill-20-lb-prop...
 Wal-mart has the cylinder exchange program for \$14.24. Have a http://www.chacha.com/question/how-much-does-it-co...
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