Calculate the required amount of firewood for heating during the winter season.
The firewood calculator calculates the required amount of firewood (loose m³, stacked measure) based on the heating needs of the house and the calorific value of the wood species. Birch is one of the most energy-dense wood species (approx. 2,000 kWh/m³).
The calculator is free, works in the browser, and does not require registration. The site has over 200 calculators with 2026 data.
Required wood amount (m³) = Heating need (kWh/year) ÷ Wood species calorific value (kWh/m³) ÷ Stove efficiency
Fill in your information in the fields and press the calculate button – the result will appear immediately. Try different values to compare different options.
Heating need 18,000 kWh/year, birch 2,000 kWh/m³, stove 80% efficiency → 18000 ÷ (2000 × 0.8) = 11.25 loose m³/year.
Enter your own information into the calculator to get a personalized result. The calculator is suitable for both quick comparisons and more detailed planning.
The calculator is designed for individuals, entrepreneurs, and professionals. All calculators on the site are free of charge.
For important financial or legal decisions, we recommend verifying the figures with official sources or an expert.
Calculate the required amount of firewood for heating during the winter season. Fill in the requested information in the form, and the firewood calculator will show the result immediately.
Yes, the firewood calculator is completely free and does not require registration. All FiksuLaskuri construction and home calculators are free of charge.
No. The calculations are done entirely in your browser and the data you enter is not sent or stored on the server.
The firewood calculator provides a good starting point for purchases, often with a small waste allowance. For larger projects, it is advisable to request an accurate measurement and quote from a professional.
Yes – at the bottom of the page, you can see other calculators related to the same topic that may also interest you.