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How many gallons of fuel does a 20-pound propane tank hold?


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June 24, 2011 11:19PM

About 4.1 gallons

Propane is a gas at standard temperature and pressure. A 20-pound tank holds about 4.1 gallons of liquid propane. It's a liquid in the tank because it's under great pressure.

4.2 lb per US gallon

5.1 lb per Imperial gallon