Roof Cost Calculator

For the roof this calculator opens with, a full replacement runs $23,050 at the US average. That's a 2,000 square foot single-story home with a 6:12 pitch, a standard hip roof, architectural asphalt shingles, and a single-layer tear-off. It works out to 26 roofing squares including waste, or $887 per square. A square is 100 square feet of roof, so that's about $8.87 per square foot, installed.

Your number won't be the US average, and that's the whole point of this page. Enter your state or ZIP and the estimate rebuilds on local roofer wages and local prices. The same roof runs $19,826 in Arkansas and $26,886 in Illinois. Material swings it even harder, from $450 a square for 3-tab asphalt to $2,500 for copper. The calculator prices your exact combination. The sections below show you the moving parts.

These are full replacement totals for the reference spec above: architectural asphalt, 6:12 pitch, standard hip, single-layer tear-off, at the US average. The jumps aren't perfectly even because material is bought in whole squares, so the count rounds up.

One thing most people miss: your roof is bigger than your house. Pitch stretches it. At 6:12, a 2,000 square foot footprint carries about 2,236 square feet of actual roof surface, and waste adds more on top. The roof pitch calculator shows exactly how much your slope adds.

Installed prices for materials and labor at the US average, before tear-off and permit. Lifespans are typical figures anchored to the InterNACHI life-expectancy chart. Cheap upfront and cheap over time aren't the same thing, which is why the last column matters.

If you're torn between two of these, don't compare stickers. Compare cost per year of service. The ranking changes more than you'd expect.

Every estimate on this page is itemized the way a good contractor bid is. On the reference roof: $16,900 for materials and labor, $3,900 for tear-off, $1,950 for disposal, and $300 for the permit. The rates behind those lines: tear-off runs $100 to $300 per square for a single asphalt or metal layer, disposal adds $40 to $150 per square, and permits typically land around $300. Roofing costs are mostly a labor story, which is exactly why location matters so much.

Pitch. Steeper roofs have more surface and slower, riskier work. A 6:12 pitch adds about 12 percent to the area you're paying for.

Complexity. Hips, valleys, and dormers slow crews down and push waste from 10 percent toward 20.

Height. Second-story work takes more time and more safety setup than a single story.

What's coming off. Tile, slate, or multiple old layers cost $250 to $500 per square to tear off, versus $100 to $300 for a single asphalt layer.

Where you live. The identical roof spans $19,826 to $26,886 across states, and metro differences inside a state can be just as big. Compare all 50 states.

Fair question, because roof calculators are everywhere. Most multiply your square footage by a made-up national rate, and plenty are lead forms that trade your phone number for a vague range. This one's built differently, and every claim below is checkable on this page.

Metro-level local pricing. Enter a ZIP and the estimate prices against your metro, not a state average, using a verified index built from Bureau of Labor Statistics roofer wages (May 2025) and BEA Regional Price Parities across 376 metros and all 51 states. Pick a state instead and every line still reprices instantly, which makes this a working roof cost estimator for anywhere in the country.

Itemized like a real bid. Four separate lines: materials and labor, tear-off, disposal, permit. You can hold any contractor quote against it line by line.

18 materials, including flat systems. Three asphalt grades, five metals, clay and concrete tile, slate, wood, synthetic, and five flat membranes, each with its own verified price and lifespan.

Local-condition toggles. Hurricane-code fastening, heavy snow and ice-dam regions, and wildfire-zone assemblies are optional toggles with capped, sourced allowances, because codes genuinely move prices in those places.

Sources named, no black box. Installed prices are cross-checked against independent 2026 trade cost guides, and every source sits right under the calculator.

Free, no lead form. No signup, no phone number, no quote requests. The estimate runs in your browser and the number is yours.

It's also one of 16 connected tools built on the same verified data. Measure your slope, turn it into squares and bundles, then pressure-test the decision: repair or replace, financing, insurance.