Roof Calculator

Calculate roof area (length × width × slope factor), divide by 100 to get squares. Each square needs 3 bundles of standard shingles. A 1,500 sqft footprint with a 6:12 pitch equals about 1,680 sqft of roof area, or 17 squares (51 bundles).

Asphalt shingles: $3.50-7.00/sqft installed. Metal standing seam: $8-14/sqft. Tile: $10-18/sqft. Slate: $15-30/sqft. A typical 1,700 sqft roof costs $6,000-12,000 for asphalt or $14,000-24,000 for metal.

A roofing square equals 100 square feet of roof area. It is the standard unit for measuring and pricing roofing materials. A 2,000 sqft roof is 20 squares. Most contractors quote prices per square.

The Roof Calculator is an online tool that lets you calculate roofing materials, squares, and cost by material type and roof pitch. It is part of NexTool's collection of free tools designed to help you work faster and more efficiently.

Using the Roof Calculator is simple: visit the tool page, enter your data or input into the provided fields, and get instant results. Follow the controls on the page. Some functions require sign-in or a paid plan; see Pricing for limits.

The Free plan includes 10 tool uses per day. Some features require an account or a paid plan. Check the controls on the tool page and Pricing for the applicable limits.

The Roof Calculator returns results based on the inputs and the tool methodology. Check assumptions, units and source dates. Treat projections as estimates. For critical decisions, always consult a qualified professional.

Yes, the Roof Calculator is fully responsive and works perfectly on smartphones, tablets, and desktop computers. Simply open NexTool in your mobile browser and navigate to the tool — no app download required.