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This calculator is offered as a means of converting logs priced by volume to price per kWh so that prices can be compared with that for other fuels such as gas, electricity or heating oil (using our Heating Oil Cost Calculator  ).
Enter the number of cords of wood that you have been offered and the total cost and the price per kWh will be calculated.
Alternatively enter the volume of wood in the next section.
| Wood Species | Heat Value (MMBTU/Cord) | kWh/m3 |
| Red Oak | 16.8 | 1355.728 |
| Paper Birch | 14.21 | 1146.720 |
| Cherry | 14 | 1129.774 |
| Elm | 13.65 | 1101.529 |
| Norway Pine | 11.97 | 965.956 |
| Apple | 18.55 | 1496.950 |
| White Ash | 16.52 | 1333.132761 |
| Generic Softwood | 11.5 | 928.028 |
| Generic Hardwood | 18 | 1452.566 |
Source
MMBTU/Cord = Million BTU = 293.071 kWh
Cord - the amount of tightly piled wood in a stack 4 feet wide and 4 feet high by 8 feet long (128 cubic feet).= 1.22 x 1.22 x 2.44 meters= 3.631696 m3
1 MMBTU/Cord = (293.071/3.631696) = 80.698109 kWh/m3
Efficiency of wood burning stove = about 70%Source:http://www.chimneysweeponline.com/wscompe.htm
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