Asphalt shingle granules a hand-width away, tree canopy blurred beyond the roof edge

Roof Cost Calculator

Pick the roof you are actually pricing and see the range, the breakdown, and what each add-on costs. No email, no phone number.

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Published

Figures updated

The tool

Price your roof

Material
Quality tier

Roof area, not the floor area of the house. A roof always covers more ground than the house does, and the gap widens with the slope.

I only know the footprint

Exact slope geometry, not an average. It still reads low on a house with dormers or deep overhangs, because a footprint cannot describe them.

Add-ons the bid will carry

Indicative multipliers only. The spread inside a region is often wider than the spread between regions.

Estimated installed cost

$11,300 – $15,800

$5.63 – $7.88 per square foot, installed

Base, material and labor
$11,300 – $15,800
Total
$11,300 – $15,800
Materials
$4,500 – $6,300
Labor and overhead
$6,800 – $9,500

How it works

Where this roof cost calculator gets its numbers

One dataset holds the installed cost of each roofing material, its expected service life, and the share of that cost which is product rather than labor. One calculation module reads it, and every roofing figure on this site comes out of that module: the tables in the cost guide, the metal versus asphalt comparison, and this calculator.

That is why the tool cannot contradict the guides. They are not two systems kept in sync; they are one system with two surfaces. Change a cost in the dataset and the calculator and every page that quotes it move together at the next publication.

  • Installed cost covers material and labor on a straightforward roof.
  • A quality tier selects a slice of that material’s own range rather than applying a multiplier, so no figure here falls outside what the underlying data supports.
  • Add-ons are a share of the base cost, because that is how contractors price them: a steep roof costs hours, not extra shingles.
  • Totals are rounded to the nearest hundred dollars. A number like $13,847 would claim a precision this data does not have.
  • The footprint converter uses exact slope geometry. A 6:12 roof carries about 12% more area than the ground it covers, and that is arithmetic rather than an estimate.

What it cannot know

What this roof cost calculator does not know

Every figure here is a national bracket. The gap between a bracket and your invoice is filled by things no calculator can see, and they are worth naming rather than burying in a disclaimer.

Your actual roof
Its true measured area, the number of valleys, dormers, chimneys and skylights, the condition of the decking underneath, and how many layers are already up there. Complexity is priced by the hour and this tool prices by the square foot.
Your market, this month
Local labor rates, how booked crews are when you call, permit fees in your jurisdiction, and what shingles cost the week they are ordered. The regional multiplier is a broad indication, not a local quote.
What the tear-off finds
Rotten sheathing, failed flashing or an unvented attic are found once the old roof is off. Honest bids carry these as a contingency priced per sheet, which is why a good quote can still move after work starts.
Whether you should do the work
A repair often beats a replacement, and this tool has no opinion on that. The roofing cost guide covers when repair stops making sense.

Using it well

How to use the estimate against a roofing bid

The point of a range is not to predict your price. It is to tell you whether the price in front of you is plausible, and to show you which line items to ask about.

A bid well below this range is usually pricing a different job: thinner shingles, no tear-off, no permit, or an overlay on top of the old roof. A bid well above it may be entirely fair on a complex roofline, and the way to find out is to ask which of the add-ons above apply to your house and what each one costs on the quote.

Take the breakdown with you. A contractor who can explain why their number differs from a national bracket is a contractor who measured. One who cannot is one who guessed.

For reference

Every roofing material the calculator prices

The bands the calculator runs on, per square foot of roof, materials and labor. Tear-off and steep pitch are priced on top of these.

Material Installed cost per square foot, installed Lifespan Who it suits
Asphalt shingles $4.50 – $9 15 – 30 years The default, and for a reason: lowest entry cost, and every crew in the country installs it. The band runs from basic 3-tab at the bottom to architectural at the top, and so does the lifespan.
Wood shake $8 – $15 25 – 40 years Handsome and high-maintenance. Restricted or surcharged in wildfire country; check your code first.
Metal $10 – $16 40 – 70 years Priced here as standing seam, the concealed-fastener roof worth buying on a house you intend to keep. Exposed-fastener panel costs roughly a third less and is a different product with a shorter life.
Clay or concrete tile $11 – $25 50 – 100 years Heavy enough to need a structural check. Budget that inspection before you price the tile. Concrete sits at the bottom of the band and clay at the top.
Natural slate $25 – $32 75 – 150 years A hundred-year roof, installed by specialists. Repairs cost more too; plan on keeping spare stock.

A roof already carrying two layers sits outside these brackets, and so does whatever the crew finds under the deck.

This calculator returns indicative national brackets, not a quote. Your number depends on the size, pitch, complexity and condition of the roof itself, and on what local crews are charging when you buy. Use it to judge a bid, not to replace one, and never as a price a contractor should match.

Cost data

Keep planning

More roofing cost guides

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