Calculate roofing materials, costs, and measurements — all for free. No signup, no guesswork.
Roof area calculators, shingle and metal panel estimators, pitch converters, underlayment sizing, and ventilation tools.
Gutter length estimators, downspout sizing, gutter guards, rain barrels, French drains, and slope calculators.
Roof replacement and repair cost estimators, material comparisons, ROI calculators, flashing, and labor time estimates.
Roof load calculators, snow load, wind uplift, insulation R-value, lifespan estimators, solar compatibility, and ice dam risk.
Calculate your total roof area from the building footprint and roof pitch, accounting for overhangs and complexity.
Calculate how many bundles and squares of shingles you need for your roof, including waste factor.
Calculate the number of metal roofing panels needed based on your roof dimensions and panel width.
Convert between roof pitch (rise/run), degrees, and percentage. Find the pitch factor for area calculations.
Calculate the total linear feet of gutters needed for your home, including corners, end caps, and joiners.
Estimate the total cost of a roof replacement including materials, labor, tear-off, and disposal.
Estimate the cost of common roof repairs including leak fixes, damaged shingles, flashing, and small section replacements.
Compare different roofing materials side by side on cost, lifespan, weight, energy efficiency, and maintenance.
Calculate the weight of snow on your roof based on snow depth, density, and roof area to assess structural risk.
Estimate your roof remaining lifespan based on material, age, climate, maintenance, and visible condition.
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