What will a new roof cost? Get a free estimate by address
Type your address. We find your house on the map, measure the roof, and show a 2026 price range for every material in about 30 seconds. No sign-up, no email, no phone number, so nobody calls you.
Most-used calculators
Built for three kinds of roof people
Homeowners
Find out how big your roof really is, what the pitch means, and what a fair price range looks like before contractors come out.
Roof estimate by address · Cost estimator · 2-minute roof check · Estimate explained · Roofing calculators
DIYers
Measure from the ground, get exact bundle and nail counts, and cut rafters right the first time.
Roofers and estimators
Fast takeoff math for the truck or the office: waste, underlayment, edge metal, cap and starter, nails and panel cut lists.
Every common roof pitch
Angle, multiplier, rafter lengths and area tables for each pitch: 1/12 · 2/12 · 3/12 · 4/12 · 5/12 · 6/12 · 7/12 · 8/12 · 9/12 · 10/12 · 11/12 · 12/12. Or see the full pitch-to-degrees chart.
Why RoofGenius
- Shows the math. Formulas, worked examples and tables on every page, so results can be checked by hand.
- No signup. Calculators run in your browser. The one exception is the address lookup, which sends the address to free public map services to find the house, and nothing else.
- Roofing calculators since 2001. RoofGenius has published roof pitch and estimating tools for over two decades, and the site was rebuilt from scratch in 2026.