Paint Cost Calculator

Get an instant estimate for your interior or exterior painting project. Compare costs for walls, ceilings, trim, siding, and cabinet painting based on quality and region.

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Scope Price Comparison

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How Much Does It Cost to Paint a House in 2026?

A professional painting project averages $1,200 to $6,500 for typical interior or exterior spaces. Most homeowners pay $2,500 to $4,500 to paint the interior walls of a 1,500-square-foot house, or $3,000 to $5,500 for standard exterior home siding painting.

Average Painting Cost by Scope & Type (Material & Labor, Installed)

Project Type Average Cost (Per Sq Ft or Door) Key Details
Interior Walls$1.50 - $5.00 / sq ftTypically 2 coats of paint
Interior Ceilings$1.75 - $6.00 / sq ftRequires special roller extensions
Trim & Doors$2.00 - $8.00 / sq ftDetailed baseboards, molding, casings
Exterior Siding$2.00 - $7.00 / sq ftIncludes pressure wash & light scraping
Exterior Trim Only$2.50 - $9.00 / sq ftDetailed fascia, gutters, windows
Cabinet Painting$75 - $250 / door or drawerSanding, spraying, curing

Major Cost Factors for Paint Projects

Total Surface Area: Painting costs scale with square footage. Note that for walls, you measure the vertical wall square footage, not the room's floor square footage (floor area multiplied by wall height is roughly equal to wall area).

Labor component: Painting is heavily labor-intensive. Up to 70% to 80% of a professional painting bid goes directly toward crew labor, prep work, taping, sanding, and clean-up. Materials (paint and supplies) only account for 20% to 30% of the cost.

Prep Work & Repairs: Smooth walls make beautiful paint jobs. If your walls have drywall cracks, holes, water damage, or wallpaper that needs stripping, contractors will charge $50 to $200 per patch or $1.00 to $4.00 per square foot for scraping and remediation.

Paint Quality: Premium paints like Benjamin Moore Regal or Sherwin-Williams Emerald cost $70 to $100+ per gallon but cover in fewer coats and wash off easily. Economy contractor paint runs $25 to $40 per gallon but may require three coats, leading to higher overall labor costs.

How We Calculate Your Estimate

Our paint cost calculator computes pricing by taking the selected project type's base rate per square foot (or per cabinet door) and multiplying by your volume. We then scale by the paint quality multiplier and regional labor indices. Labor is added as a standard 70% markup on material costs. Optional add-ons like extra primer coats, wallpaper removal, drywall patching, and a drastic color change multiplier are added to construct the final estimate range.

Frequently Asked Questions

One gallon of standard paint covers approximately 350 to 400 square feet with a single coat. To paint a 10x12 room with 8-foot walls (about 350 sq ft of wall space), you will need roughly 2 gallons of paint for a standard two-coat application, not including trim or ceilings.
Yes, when done professionally. Painting kitchen cabinets involves degreasing, sanding, priming with bonding primer, and spraying 2 coats of heavy-duty urethane enamel or lacquer. This costs roughly $2,000 to $5,000, saving 60% to 80% compared to cabinet replacement, which can cost $10,000 to $30,000.
Standard interior walls should be painted every 5 to 7 years depending on wear and tear. High-traffic hallways, kitchens, and bathrooms may need fresh paint every 3 to 5 years. Exterior siding typically requires painting every 7 to 10 years depending on weather exposure and siding material (wood needs paint more frequently than vinyl or stucco).
While possible, it is not recommended. Painting over wallpaper seals the seams, making it extremely difficult to remove in the future. The moisture from the paint can also cause the wallpaper adhesive to loosen, leading to bubbling and peeling. Removing the wallpaper first yields a much smoother, long-lasting finish.

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