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Roof Cost Calculator
Get an instant estimate for your roof replacement. Enter your details below and we'll calculate your expected cost range.
Estimate Your Roof Cost
Estimates are for general guidance. Get exact quotes from local contractors.
Your Estimated Roof Cost
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Range: $0 – $0
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Per Sq Ft
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Roofing Squares
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Tear-Off Cost
How This Calculator Works
Our roof cost calculator estimates your total replacement cost based on five key variables:
- Roof size: We convert your home's square footage to "roofing squares" (100 sq ft each), accounting for roof pitch which increases actual roof area.
- Material cost: Each roofing material has a different installed cost per square foot, from budget asphalt ($4.50) to premium slate ($17.50).
- Tear-off: Removing the old roof before installing new materials adds $1,500–$2,500 depending on layers.
- Complexity: Valleys, dormers, skylights, and unusual shapes increase labor time and waste.
- Height: Multi-story homes require additional safety equipment and labor time.
The result shows an estimated midpoint with a range of ±20% to account for regional labor rate differences, specific contractor pricing, and unforeseen conditions like rotted decking.
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This calculator gives a ballpark estimate. For exact pricing, get free quotes from licensed roofers in your area.
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