Roofing Cost Calculators

20 free roofing calculators — from full replacement to small repairs, shingle counts, metal roofing, gutters, and snow load analysis. Know your numbers before the roofer arrives.

Average roof replacement cost by material

Asphalt Shingles (3-tab)

$5,000–$10,00020–25 yr

Architectural Shingles

$7,000–$14,00030–40 yr

Metal (Corrugated)

$10,000–$18,00040–70 yr

Metal (Standing Seam)

$18,000–$35,00050+ yr

Concrete Tile

$15,000–$25,00050 yr

Clay Tile

$20,000–$40,00050–100 yr

Average-size home (1,800 sq ft, simple pitch). Installed cost including tear-off.

Roof Replacement Cost Calculator

Calculate full roof replacement cost by material, home size, and pitch

$5,000–$30,000+8 materialsPitch multiplier

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Asphalt Shingle Calculator

Calculate shingle bundles, squares, and total installed cost

$3,500–$12,000Bundle/square calcStarter strip included

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Roof Repair Cost Calculator

Estimate repair costs by damage type, area, and roofing material

$150–$4,000Urgency premiumDamage type guide

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Metal Roofing Cost Calculator

Calculate metal roofing costs with energy savings and payback vs. asphalt

$10,000–$40,000Energy savings50-year lifespan

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Flat Roof Cost Calculator

Estimate TPO, EPDM, modified bitumen, and PVC flat roof costs

$4,000–$14,0004 flat roof typesWarranty comparison

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Tile Roof Cost Calculator

Calculate concrete and clay tile roof costs with structural assessment

$15,000–$45,000Structural checkClay vs concrete

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Gutter Installation Cost Calculator

Calculate gutter installation costs by material, style, and home perimeter

$600–$4,000Aluminum/copper/vinylLeaf guard add-on

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Skylight Installation Cost Calculator

Calculate skylight installation costs by type, size, and quantity

$800–$6,000Fixed/vented/tubularMulti-skylight discount

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New Roof Installation Cost Calculator

Estimate new construction roof installation costs

$4,000–$20,000New constructionNo tear-off cost

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Roof Decking Calculator

Calculate roof decking costs by material and replacement area

$1,000–$8,000OSB vs plywoodPartial replacement

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Roof Truss Cost Calculator

Calculate roof truss costs by type, span, and home footprint

$3,000–$15,0008 truss typesPer-truss cost

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Roof Underlayment Calculator

Calculate roof underlayment costs by material type and area

$200–$1,500Felt/synthetic/ice & waterOverlap included

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Roof Vent Calculator

Calculate ventilation quantities needed and total installation cost

$300–$2,500NFA calculationRidge/box/soffit vents

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Roofing Squares Calculator

Calculate roofing squares and bundles from home size and pitch

Material calculatorPitch factorBundle/square breakdown

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Roof Pitch Calculator

Calculate roof pitch ratio, angle in degrees, and actual roof area

Free toolRise/run to angleArea multiplier

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Roof Area Calculator

Calculate actual roof area from house footprint dimensions and pitch

Free toolMulti-section roofsOverhang included

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Roof Cost Per Square Foot Calculator

Compare roofing material costs per square foot across 8 materials

$1–$20+/sq ftRegional adjustmentMaterial comparison

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Snow Load Roof Calculator

Calculate design snow load using ASCE 7 methodology

Structural toolASCE 7 standardGeographic zones

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Downspout Calculator

Calculate downspout costs by material, count, and height

$100–$1,200Aluminum/copper/vinylExtension add-ons

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