Free online roofing calculators for construction professionals, contractors, and DIY enthusiasts.
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18 tools available
Calculate total roof area from pitch and dimensions.
Calculate roof pitch from rise and run.
Convert roof pitch to angle in degrees.
Calculate shingle bundles needed for your roof.
Calculate roofing felt rolls needed.
Calculate the number of roof trusses needed.
Calculate rafter length from run and pitch.
Calculate ridge board length for the roof peak.
Calculate sheathing sheets for the roof deck.
Calculate hip roof surface area.
Calculate gable roof surface area.
Calculate roof vents for attic ventilation.
Calculate roofing nails needed for shingles.
Calculate drip edge linear feet for the roof.
Calculate valley length for intersecting roofs.
Calculate roof flashing linear feet.
Calculate underlayment rolls for the roof.
Estimate total roofing project cost.
More construction tools available
Our roofing calculators provide accurate, instant results for construction professionals, contractors, and DIY enthusiasts. Each calculator uses industry-standard formulas and handles edge cases to deliver reliable estimates.
Whether you need to estimate materials, calculate costs, or plan your next project, our roofing tools deliver reliable results to help you make informed decisions and stay on budget.
