Saqib Hanif is the CEO and founder of Calculator Value. He builds calculators and educational content across sports, math, and science, and supports a limited set of construction-related calculators. Read full profile
The New Roof Cost Calculator estimates installed cost for new construction or full redeck scenarios (no tear‑off). It accounts for roof area, covering material, complexity, pitch, story/height, location, region, sheathing choice, and optional structural repairs.
Covering = Area × MaterialRate(material)Accessories = Covering × Accessory%Underlayment = Area × 0.45Sheathing = Area × SheathingRate(option)Materials = (Covering + Accessories + Underlayment + Sheathing) × RegionFactorLabor = Area × 3.00 × Complexity × Pitch × Location × Height × RegionFactorPermit = (Materials + Labor) × 0.015Repairs = (Materials + Labor + Permit) × Repairs%Total = (Materials + Labor + Permit + Repairs) × 1.10
$1.80, metal $6.50, tile $10.50, slate $16.00, wood shakes $8.0035%, metal 30%, tile 25%, slate 20%, wood shakes 30%$0.45/ft²$0.00, OSB 7/16" $1.25, Plywood 1/2" $1.60, Plywood 5/8" $1.951.0, moderate 1.2, complex 1.4) × pitch (low 0.95, standard 1.0, steep 1.2) × location (rural 0.90, suburban 1.0, urban 1.15) × height (1‑story 1.0, 2‑story 1.10, 3+ 1.20) × region (none 1.00, northeast 1.10, southeast 1.08, midwest 1.07, west 1.11)1.5% of materials + labor0–20% of (materials + labor + permit)10% of subtotal2,000 ft² • Asphalt shingles • Moderate • Standard pitch • 2‑story • Suburban • OSB 7/16" • Region: Not specified • Repairs: 0%
Covering $3,600.00 · Accessories $1,260.00 · Underlayment $900.00 · Sheathing $2,500.00 → Materials $8,260.00
Labor $7,920.00 → Permit $242.70 → Repairs $0.00 → Subtotal $16,422.70
Contingency (10%) $1,642.27 → Total $18,064.97 ($9.03/ft²)
Note: Results reflect typical current market mid‑range pricing. Actual costs vary by brand/gauge, ventilation/flashing design, complexity, contractor demand, and regional labor.
Are you looking for a new roof cost calculator? Don’t worry — we bring you an accurate new roof (without tear-off) cost calculator that uses roof area, material, complexity, pitch, story/height, and location to estimate the total project cost and provide a step-by-step breakdown of the costs.
We will walk you through, step by step:
A new roof cost calculator is an online tool built to help homeowners and contractors estimate the cost of a new roof for a specific roof area and requirements. The calculator considers many factors — most importantly roof area, material, complexity, pitch, story/height, and location — to estimate the total project cost and break down the costs.
The calculator requires only the roof area in square feet; the rest of the inputs have sensible defaults you can adjust. It then instantly displays the estimated total cost and the cost breakdown.
If you are using the calculator, you might be curious about the formula and the logic behind it. The calculator uses simple, common formulas to estimate the total cost and other costs. Here is the core formula:
Total new roof cost = (Roof area × (Material $/ft² + Labor $/ft²)) + Accessories + Underlayment + Sheathing + Permit + Repairs + Contingency (5-15%)
The formula gives you the total cost of a new roof based on the data you provide. Now we will discuss a real-world example to make it clear.
Suppose you want to estimate the total cost of a new roof, and you have this data:
Apply the formula:
$16,500$11.00 per sq. ft.Thus, the estimated total new roof cost is $16,500, and the cost per sq. ft. is $11.