Firewood Volume Calculator
Calculate how many cords of firewood you need for the heating season based on house size, insulation, and stove efficiency.
Inputs
sq ft
HDD
%
%
Results
Cords Needed
3.6
Logs to Process
360
Cost Estimate$900
BTU Required50,400,000
Cutting/Splitting Days4 days
How to Use This Calculator
- Enter House Sq Ft and select Insulation Level (poor, average, or good) to estimate the home's heat loss.
- Look up your Heating Degree Days from NOAA climate data for your location and enter the value.
- Enter Wood Stove Efficiency (%) — EPA-certified stoves are typically 70–80%; older stoves may be 50–60%.
- Set Supplemental Heat (%) if wood is not your only heat source — this reduces the firewood requirement proportionally.
- Review Cords Needed (one cord = 128 cu ft) and Cost Estimate to plan your wood-buying or cutting season.
- Use Logs to Process and Cutting/Splitting Days to schedule your firewood preparation before winter.
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