Roofing Calculators
Updated Formulas shown
Shingles, roof area, pitch and metal panels. Every calculator shows its formula and works on your phone at the job site.
Related calculators
- Roofing CalculatorFree roofing calculator: house dimensions and pitch to roof area, squares, shingle bundles, underlayment and installed cost.
- Shingle CalculatorCalculate bundles of roof shingles from house size and pitch, including waste, starter and ridge notes.
- Roof Square Footage CalculatorTurn your house footprint and roof pitch into actual roof square footage and roofing squares.
- Roof Pitch CalculatorConvert rise and run to roof pitch (x/12), angle in degrees, percent slope and area multiplier.
- Metal Roofing CalculatorCalculate metal roof panels by coverage width and panel length, plus squares and screws.
- Siding CalculatorCalculate siding squares from house perimeter, wall height and gables, minus doors and windows, with waste and installed cost.