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Wood Fuel BTU Output Calculator

Heat content of seasoned firewood by species.

Estimate the heat (BTU) released by burning seasoned firewood from the species's typical BTU/cord rating, the number of cords, and the wood-stove efficiency.

Marcus Laurent By Marcus Laurent
Published Last reviewed 1 min read

Inputs

cord
%

Results

Enter values and click Calculate to see results.
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How to use this calculator

  1. Fill in the inputs above using the units you already have.
  2. Values update automatically as you type — no submit button needed.
  3. Hover any result row for the underlying formula and intermediate values.

Formula

BTU_delivered = species_btu_per_cord · cords · efficiency %

In depth

Estimate the heat (BTU) released by burning seasoned firewood from the species's typical BTU/cord rating, the number of cords, and the wood-stove efficiency.