Roofing Archives - SmartEstimatorHQ

Use our free roofing calculators to estimate shingles, roofing costs, underlayment, drip edge, gutters, vents, nails, metal panels, and roof pitch.

Roofing Calculators

Estimate total gutter footage, downspout count, and downspout footage from your roof perimeter.

Calculate how many metal roofing panels you need based on roof width and panel coverage.

Calculate how many drip edge pieces you need for the eaves and rakes of a roof.

Convert rise and run into roof pitch, angle in degrees, and the slope-length multiplier.

Find out how many rolls of felt or synthetic underlayment your roof needs, including overlap.

Calculate how much attic ventilation area you need, split between intake and exhaust vents.

Estimate total material and labor cost for a re-roof based on roofing squares.

Estimate how many pounds and boxes of roofing nails you need by the square.

Calculate roofing squares, shingle bundles, and nails needed based on your roof footprint and pitch.