1 kilowatt hour of electricity

=

3413 British thermal units (Btu)

1 cubic foot of natural gas

=

1,008 to 1,034 Btu

1 therm of natural gas

=

100,000 Btu

1 gallon of crude oil

=

138,095 Btu

1 barrel of crude oil

=

5,800,000 Btu

1 gallon of residual fuel oil

=

149,690 Btu

1 gallon of gasoline

=

125,000 Btu

1 gallon of ethanol

=

84,400 Btu

1 gallon methanol

=

62,800 Btu

1 gallon of gasohol 
(10% ethanol, 90% gasoline)

=

120,900 Btu

1 gallon of E-85
(85% ethanol, 15% gasoline)

=

90,500 Btu

1 gallon of kerosene or light distillate oil

=

135,000 Btu

1 gallon of middle distillate or diesel fuel oil

=

138,690 Btu

1 gallon of liquefied petroleum gas (LPG)

=

95,475 Btu

1 pound of coal

=

8,100 to 13,000 Btu

1 ton coal

=

16,200,000 to 26,000,000 Btu

1 ton wood

=

9,000,000 to 17,000,000 Btu

1 standard cord of wood

=

18,000,000 to 24,000,000 Btu

1 face cord of wood

=

6,000,000 to 8,000,000 Btu

1 pound of low pressure steam (recoverable heat)

=

1,000 Btu