Roofing Calculators & Estimators
Squares, shingles, pitch, trusses, metal panels and gutters. Built for homeowners planning a project and contractors preparing a bid: enter dimensions, get the quantities and budget ranges suppliers actually quote in.
Roofing Calculator
Roof area and roofing squares from house footprint and pitch multiplier.
Shingle Calculator
Shingle bundles from roofing squares with waste factor.
Roof Pitch Calculator
Pitch ratio, angle in degrees and area multiplier from rise and run.
Roof Square Footage Calculator
True roof surface area from footprint and pitch, in sq ft and squares.
Roof Truss Calculator
Truss count from building length and on-center spacing.
Roofing Cost Calculator
Installed roof replacement cost by material at 2026 per-square rates.
Metal Roofing Calculator
Metal panel count from roof area and panel coverage width.
Gutter Calculator
Gutter linear feet, downspouts and sections from roof eave perimeter.
When to use which calculator
Start at the Roof Square Footage Calculator — true area is the input everything else needs. The Pitch Calculator supplies the multiplier if you don't know it. From area, go to Shingles or Metal Panels for material, Roofing Cost for budget, and Gutters to finish the eaves.