AI-powered roofing cost estimator
Planning a roof replacement is a major financial decision. Most contractors won't give you a number without a high-pressure sales visit—that's why we built this roof cost calculator to give you transparency first.
Labor rates vary by region
Based on actual quotes
Current material costs
While this tool provides a highly accurate baseline, remember that complex roof features (like skylights, chimneys, or difficult access) may affect the final quote.
We designed this roofing cost calculator to be as simple as possible while maintaining accuracy. However, "garbage in equals garbage out." Here is how to ensure your inputs give you a realistic estimate for your specific home.
Determine Your Home Size
You don't need to climb on the roof with a tape measure. You just need your home's "footprint" square footage.
Estimate Your Roof Pitch
Roofers measure "pitch" by how many inches the roof rises for every 12 inches of length.
Select Your Material
The material is your biggest cost variable. Asphalt shingles are the most common.
A roof estimate calculator provides a baseline, but real-world quotes are influenced by six specific variables. Understanding these will help you interpret your results.
Roof Size (Squares)
Materials are priced by the "Square" (100 sq. ft.). 2,500 sq. ft. = 25 Squares.
Pitch and Slope
Steep roofs require safety gear and slow down work, costing 20-50% more in labor.
Material Type
Standard asphalt is economy; slate/copper can cost 10x as much.
Labor & Location
Labor is ~40% of the cost. Rates vary wildly by city and cost of living.
Tear-Off
Removing old layers ensures a solid deck but adds labor and disposal fees.
Permits & Waste
Building permits and dumpster fees are standard costs passed to the homeowner.
Use this table to compare how different materials impact your bottom line. These ranges represent the National Average for 2025.
Asphalt Shingles
$350 – $750/sq
15–30 Years lifespan
Metal Roofing
$500 – $1,500/sq
30–50+ Years lifespan
Clay/Concrete Tile
$1,000 – $1,800/sq
50+ Years lifespan
Slate
$1,500 – $3,000/sq
75+ Years lifespan
Flat (TPO/EPDM)
$600 – $1,000/sq
20–30 Years lifespan
Get an instant estimate based on your ZIP code and roof details.
Pro Tip: Consider Long-Term ROI
While Asphalt is cheapest upfront, Metal roofs offer better energy efficiency. According to Energy.gov, "cool roofs" can lower roof temperatures by up to 50°F.
Why does a roof in California cost more than a roof in Ohio?
Higher wages for workers in urban coastal areas mean higher labor costs.
Climate Requirements
Hurricane Zones: Wind-rated shingles
Snow Zones: Ice & Water Shield
Do you actually need a full replacement? Sometimes, a repair is sufficient. However, throwing money at a failing roof is often a temporary fix.