Free calculator

Roofing calculator

Footprint and pitch in, squares and bundles out — with tear-off and labor priced the way roofers actually bid. Then send it straight into a quote.

Roof details

Building length (ft)

Building width (ft)

Roof pitch

Roof style

Waste factor adjusts automatically: gable 10%, hip 15%, flat 8%.

Materials & labor

Shingle price ($ / square)

1 square = 100 sq ft

Labor rate ($ / square)

Tear-off layers (0–2)

Tear-off cost ($ / square / layer)

Estimate

Roof area1342 sq ft

Roofing squares13.4

Shingle bundles45

Materials$2,656.45

Labor$3,354.10

Tear-off$804.98

Job total$6,815.54

Send to quote →

3 bundles per square, waste included, bundles rounded up — you order whole bundles, not fractions.

Ballpark, not gospel. This estimates squares, bundles, and costs from the numbers you punch in — always check against your supplier's specs and your own measurements before ordering or quoting.