Roof Pitch Calculator
Convert roof rise and run into pitch and slope measurements.
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Measure • Plan materials • Estimate costs
Roofing Tools and Calculators
Explore 24 roofing tools for roof measurements, material quantities, accessories, and project costs. Choose a calculator, enter your project details, and use the result to support your planning.
Browse all roofing tools
Showing 24 of 24 tools.
Roof Area Calculator
Estimate sloped roof area from your dimensions and roof pitch.
Open calculator →Roofing Square Calculator
Convert roof area into roofing squares for material planning.
Open calculator →Rafter Length Calculator
Estimate rafter length from the roof run and rise or pitch.
Open calculator →Roof Shingle Calculator
Estimate shingle quantities with your selected coverage and waste allowance.
Open calculator →Metal Roof Panel Calculator
Plan metal roofing panel quantities using effective panel coverage.
Open calculator →Roof Tile Calculator
Estimate roof tile quantities using tile coverage and a waste allowance.
Open calculator →Roof Sheathing Calculator
Estimate the number of sheets needed to cover your roof deck.
Open calculator →Roof Underlayment Calculator
Plan underlayment roll quantities from roof area and usable coverage.
Open calculator →Flat Roof Membrane Calculator
Estimate membrane quantities using roof area and coverage inputs.
Open calculator →Roof Batten Calculator
Plan roof batten quantities using roof dimensions and spacing.
Open calculator →Roof Insulation Calculator
Estimate insulation quantities for the roof area you want to cover.
Open calculator →Roof Coating Calculator
Estimate coating quantities from coverage rates and the number of coats.
Open calculator →Ridge Cap Calculator
Estimate ridge cap quantities using ridge length and product coverage.
Open calculator →Starter Shingle Calculator
Plan starter shingles for the roof edges included in your project.
Open calculator →Drip Edge Calculator
Estimate drip edge lengths and pieces for your selected roof edges.
Open calculator →Valley Flashing Calculator
Estimate flashing quantities for roof valleys using length and overlap.
Open calculator →Ice & Water Shield Calculator
Estimate membrane coverage and rolls for selected protection areas.
Open calculator →Roofing Nail Calculator
Estimate roofing nail quantities using your fastening assumptions.
Open calculator →Roof Replacement Cost Calculator
Build a roof replacement estimate using your area and project rates.
Open calculator →Metal Roof Cost Calculator
Estimate metal roofing costs using your project quantities and rates.
Open calculator →Roof Tear-Off Calculator
Plan roof removal quantities and costs using project-specific inputs.
Open calculator →Roofing Labor Calculator
Estimate roofing labor costs using your chosen rates and project inputs.
Open calculator →Roofing Estimate Builder
Bring roofing cost items together into one project estimate.
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How to choose the right roofing calculator
- Start with measurements: establish pitch and roof area before calculating materials. A roofing square equals 100 square feet of roof area.
- Use product coverage: use the manufacturer's effective coverage, overlap, and installation requirements when planning quantities.
- Check waste allowances: valleys, hips, dormers, and cutting patterns can increase material needs. Avoid adding the same allowance twice.
- Use local costs: enter supplier and contractor rates relevant to your project. Keep all prices in the same currency.
Roofing tool questions
Which roofing calculator should I use first?
Start with roof pitch and roof area if you do not already know them. Use the area to estimate your main roofing material, then calculate accessories and project costs.
Is roof area the same as the building footprint?
No. Sloped roof surfaces have more area than their horizontal projection. Overhangs and roof shape also affect the total. Check each calculator's input labels before entering measurements.
Can I use these roofing tools outside the United States?
You can use the tools for projects in different locations when your measurements match the units shown. Convert measurements when necessary, and use local product specifications, prices, and installation requirements.
Are the results a final quote or construction specification?
No. Results are planning estimates based on your inputs and the calculator's assumptions. Confirm quantities with your supplier and have a qualified professional assess site conditions and structural requirements.
How do I report a calculator issue?
Visit our Contact page and share the tool name, inputs, units, and result. You can also email support@roofertx.net.
Learn more about RooferTX or suggest a roofing tool.