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Heating Fuel Cost Comparison Calculator

Enter your local prices to rank fuels by cost per million BTU of delivered heat. Defaults are example prices.

How it works

Cost = price per unit ÷ (BTU per unit ÷ 1,000,000) ÷ efficiency. BTU per unit: firewood 20 million per cord, pellets 16.5 million per ton, propane 91,452 and heating oil 138,500 per gallon (EIA averages; pellets approximate). Details in is firewood cheaper than propane? and pellets vs firewood.