Roofing Calculators

Roof pitch, roofing material and roof replacement cost — measure your roof, size the materials, and price the job.

CalcBooth’s roofing calculators take a roof from a few ground measurements to a full materials and cost picture. Start with the roof pitch calculator to turn a rise-over-run reading into your slope, angle and the slope factor that scales your footprint to true roof area. Feed that into the roofing material calculator to get squares, shingle bundles, underlayment, drip edge and nails, with a shopping list you can take to the store. Then use the roof replacement cost calculator to put a price range on the job by material, including tear-off and labor, so you know what a fair quote looks like before you call a contractor. Every tool shows the formula it uses and updates live as you type, so you can try different pitches, materials and waste factors and see the numbers move. Roofing figures are planning estimates: confirm exact quantities and pricing with your supplier or roofer before you buy or sign.