Roofing Calculators

Roofing calculators for planning, ordering materials and framing. Every tool shows its formula, works on your phone and needs no sign-up.

Measure the roof

Roof Pitch CalculatorRise and run to pitch, degrees, percent slope and rafter length.Roof Square Footage CalculatorSloped roof area and roofing squares from your footprint.

Order materials

Roof Shingle CalculatorBundles, starter, ridge cap, nails and underlayment.Metal Roofing CalculatorPanel count, panel length, screws, trim and material cost.Soffit CalculatorSoffit panels, channel, vented area and installed cost.Attic Ventilation CalculatorNet free area, ridge vent feet and soffit vents needed.

Framing and loads

Rafter CalculatorRafter length, plumb and seat cuts, rafter count and lumber.Roof Truss CalculatorTruss count, top chord length and 2026 truss cost.

For contractors

Roofing Calculator for ContractorsBid price, price per square and margin for roofing jobs.Roofing Calculator WidgetFree roof pitch calculator to embed on your own website.

Ready for a real quote?

Done with the math? Licensed roofers near you can measure, quote and install.

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Get free quotes for your roof

Tell us about the job and a licensed local contractor will call you with a price. Free, no obligation. Prefer to talk now? Call (380) 247-5157.

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