Square Footage Cost Calculator
Quickly calculate total project cost from a per-square-foot rate. Works for flooring, painting, construction, landscaping, and any area-based pricing.
✓ Instant total from rate × area
✓ Works for any per-sqft pricing
✓ Waste factor adjustment
Additional components
Estimated Cost
$5,000
Range: $4,250 \u2013 $6,000 \u2022 $5/sq ft
Cost breakdown
How to Use Cost Per Square Foot
Per-square-foot pricing is the universal unit for home improvement, construction, and real estate. Mastering this calculation helps you compare bids, estimate budgets, and spot overpriced quotes.
The Formula
Total Cost = Square Footage × Rate Per Sqft
Cost Per Sqft = Total Cost ÷ Square Footage
Example: 1,200 sqft × $4.50/sqft = $5,400 total
Typical Rates by Project Type
- Interior painting: $2–$6/sqft (walls + ceiling, 2 coats)
- Flooring (carpet): $2–$8/sqft installed
- Flooring (hardwood): $6–$12/sqft installed
- Drywall: $1.50–$3.00/sqft (hang + tape + finish)
- Roofing: $5–$12/sqft (shingles, installed)
- Concrete/patio: $6–$15/sqft (poured + finished)
- New construction: $100–$400/sqft (full build, varies by region)
Comparing Contractor Bids
When comparing quotes, always convert to a per-square-foot rate. A $12,000 quote for 2,000 sqft ($6/sqft) is actually cheaper than $8,000 for 1,000 sqft ($8/sqft). The per-sqft rate is the only fair apples-to-apples comparison.
📊 Budget Rule
Always add 10–15% to your calculated total for unexpected costs. Home projects almost always exceed the initial estimate due to hidden damage, material waste, or scope changes.