Roofing Calculators
Browse $15 calculators in this category — organized by project group, with each tool featuring its own formula, worked example and technical diagram. All calculators run 100% in your browser — no backend, no tracking. US customary default with metric where useful.
$15 calculators · $3 groups
Roof Core
Roofing Calculator
Calculate roofing for US roofing — roof area, pitch, bundles and waste for shingles coverage. Enter roofing di
OpenRoof Area Calculator
Calculate roof area for US roofing — roof area, pitch, bundles and waste for shingles coverage. Enter roofing
OpenRoof Pitch Calculator
Calculate roof pitch ratio, angle in degrees and slope from rise and run — for rafters and code. Enter roofing
OpenRoof Slope Calculator
Calculate roof slope for US roofing — roof area, pitch, bundles and waste for shingles coverage. Enter roofing
OpenShingles & Materials
Roofing Shingle Calculator
Calculate roofing shingle for US roofing — roof area, pitch, bundles and waste for shingles coverage.
OpenShingle Quantity Calculator
Calculate shingle quantity — how many units, bags or pieces you need with waste factor. Enter roofing dimensio
OpenShingle Cost Calculator
Estimate shingle cost — material, quantity and price with waste. Compare per yard, per bag or per ton for US p
OpenRoofing Material Calculator
Calculate roofing material for US roofing — roof area, pitch, bundles and waste for shingles coverage.
OpenRoofing Underlayment Calculator
Calculate roofing underlayment for US roofing — roof area, pitch, bundles and waste for shingles coverage.
OpenRoof Sheathing Calculator
Calculate roof sheathing for US roofing — roof area, pitch, bundles and waste for shingles coverage.
OpenRoof Waste Calculator
Calculate roof waste for US roofing — roof area, pitch, bundles and waste for shingles coverage. Enter roofing
OpenStructure
Roof Rafter Calculator
Calculate roof rafter for US roofing — roof area, pitch, bundles and waste for shingles coverage. Enter roofin
OpenRafter Length Calculator
Calculate rafter length — rafter length from span, pitch and overhang with waste for US projects. Enter roofin
OpenRoof Truss Calculator
Calculate roof truss for US roofing — roof area, pitch, bundles and waste for shingles coverage. Enter roofing
OpenRoof Flashing Calculator
Calculate roof flashing for US roofing — roof area, pitch, bundles and waste for shingles coverage. Enter roof
Open