Free Roofing Tools

    Simple, no-signup roofing calculators for homeowners doing homework and roofers doing quick math on the tailgate. All free, no email wall, no gimmicks.

    Roof Pitch Calculator

    Convert rise and run into pitch (X/12), angle in degrees, and pitch multiplier. Free reference table for every common pitch.

    Roofing Square Calculator

    Turn footprint square footage into roofing squares, adjusted for pitch. Includes waste factor and bundles-of-shingles output.

    Roof Replacement Cost Estimator

    Rough national-average cost range for a roof replacement by material and square footage. For ballpark planning.