This free roofing calculator estimates the area of a roof and the number of materials required to replace or build the said roof.

Calculate your roof size accurately with our roof area calculator. Get estimates for roofing materials, shingles, and coverage needed for your project.

To estimate roof size, measure the base area of each section, factor in the pitch, compute the total square footage, and calculate the number of squares needed for materials.

Oct 11, 2025 · This Roof Area Calculator helps you accurately determine the surface area of a roof, whether you’re a professional in the construction industry or a homeowner planning a roofing project.

Calculate accurate roof size for your project with our Roof Size Calculator. Perfect for planning shingles, costs, and materials.

Calculate your roof’s size and estimate how many bundles of shingles, rolls of felt, and squares of roofing material you need for a new roof. Add the price per square for materials to get an estimated …

Jul 8, 2025 · Calculate roof dimensions accurately with our free interactive tool. Simply draw your roof outline on satellite imagery and get instant measurements for your roofing project.

Quickly estimate roof size, materials, and shingle bundles with ServiceTitan’s free roofing calculators. Calculate total area, pitch, and costs for any roofing project.

To calculate the roof size, you need to measure the flat roof area, consider the roof pitch, calculate the square footage, and finally determine how many squares of material are needed for the roof.

💡 If you are building a roof, our rafter length calculator may be just what you need. Or if you get a lot of snow where you live and ensure your roof can cope, check out our snow load calculator.