Calculate the amount of roofing material needed based on the roof area.
The roof calculator calculates the roof area based on the slope and base dimensions and estimates the required amount of roofing material. The actual roof area is larger than the floor plan due to the slope.
The calculator is free, works directly in the browser, and does not require registration. All calculations are based on standard formulas; always check the rules that apply where you live.
Roof area = Base area ÷ cos(slope°). Coefficient 20° ≈ 1.064, 30° ≈ 1.155, 45° ≈ 1.414.
Fill in the calculator fields with your measurements or values and press the calculate button. The result will appear immediately.
Gable roof: base 9×13 m, slope 30° → roof area 2 × (9 × 6.5 m slope) × 1.155 ≈ 135 m².
Try with your own measurements – the calculator updates the result in real-time. Always add a small allowance for waste.
The calculator is particularly useful for planning renovation and construction projects, preparing requests for quotes, and estimating material costs. Accurate measurement results save both money and time.
Remember that it is always advisable to consult professionals regarding critical structures in construction. This calculator provides a good estimate for material quantities.
Calculate the need for roofing material based on the roof area. Fill in the requested information in the form, and the roof calculator will show the result instantly.
Yes, the roof 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 roof calculator provides a good starting point for purchases, often with a small waste allowance. For larger projects, it's advisable to request precise measurements and quotes 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.