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Energy Content of Fuels

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Fuel	Btu	Joules
1 ft3 natural gas	1000 Btu	1.055 x 106 joules
1 therm natural gas	100,000 Btu	1.055 x 108 joules
1 barrel crude oil	5,100,000 Btu	5.381 x 109 joules
1 ton coal	25,000,000 Btu	2.638 x 1010 joules
1 gallon gasoline	125,000 Btu	1.319 x 108 joules
1 gallon #2 fuel oil	140,000 Btu	1.477 x 108 joules
1 gallon LP gas	95,000 Btu	1.002 x 108 joules
1 cord of wood	30,000,000 Btu	3.165 x 1010 joules